Day N3 - 2 - Grammar Practice

Complementary Exercises: Daily N3 - Day 2

After reading the lesson text, practice the grammar points introduced in Day N3-2.

These exercises focus on recognizing mistakes, choosing correct patterns, and producing your own sentences.
They are divided into three study sessions. Each session focuses on a different way of practicing the grammar learned in the shadowing lesson.

Grammar practiced:
✓ 〜ã‹ã¨æ€ãŖãŸ
✓ Nというと/といえば/ã¨ã„ãŖãŸã‚‰
✓ NãŖãĻ
✓ 〜んじゃãĒい
✓ 〜ばかり
✓ 〜ãŋたい
✓ 〜ようだ/ようãĒ/ようãĢ

1. Understand

Goal: Recognize and understand how the grammar is used.
Focus on identifying correct patterns and noticing common mistakes.

🔍 Find the Error

Identify the sentence that contains a grammar mistake.
Goal: Train your ability to notice incorrect grammar patterns and avoid common mistakes.

1: Which sentence is grammatically incorrect?

Choices
A: ã“ãŽæĄäģļをæē€ãŸã•ãĒければ、ä礿›ã§ããĒいãŋたいだ。
B: åŊŧはå„Ēã—ã„ã ãŖãĻčŠ•åˆ¤ã 。
C: į´å“æ›¸ã¯é ã‹ãŖãĻありぞす。
D: あぎåē—はもう閉åē—したはずだから、æ€Ĩごう。
Answer
B
Correct Sentence: åŊŧはå„Ēã—ã„ãŖãĻčŠ•åˆ¤ã 。
Explanation: When quoting a statement with ãŖãĻ, an i-adjective is quoted in its plain form. Since å„Ēしい is already complete by itself, adding だ is incorrect. Therefore, å„Ēã—ã„ã ãŖãĻčŠ•åˆ¤ã  is ungrammatical, and the correct sentence is åŊŧはå„Ēã—ã„ãŖãĻčŠ•åˆ¤ã .

2: Which sentence is grammatically incorrect?

Choices
A: こぎブãƒŧãƒ„ã¯ãĄã‚‡ãŖã¨ãã¤ã„ã ã‹ã¨æ€ãŖãŸãŒ、åąĨいãĻãŋたら大丈å¤Ģã ãŖãŸ。
B: こぎ゚ニãƒŧã‚Ģãƒŧはã‚ĩイã‚ēが合うはずだが、čŠĻį€ã—ãĻãŋよう。
C: こぎã‚ŋグãĢはä礿›æĄäģļが書いãĻある。
D: åŊŧはもうæĨåē—したãŋたいだ。
Answer
A
Correct Sentence: こぎブãƒŧãƒ„ã¯ãĄã‚‡ãŖã¨ãã¤ã„ã‹ã¨æ€ãŖãŸãŒ、åąĨいãĻãŋたら大丈å¤Ģã ãŖãŸ。
Explanation: きつい is an i-adjective, which cannot be followed by the copula だ. Adding だ between an i-adjective and ã‹ã¨æ€ãŖãŸ is incorrect.

3: Which sentence is grammatically incorrect?

Choices
A: こぎブãƒŧツ、ãĄã‚‡ãŖã¨ãã¤ã„ã‚“ã˜ã‚ƒãĒい?
B: åŊŧåĨŗã¯ä슿—ĨæĨるãŋたいだね。
C: 提å‡ēã—ãŸæ›¸éĄžã¯ã‚‚ã†å—į†ã•ã‚ŒãŸã¯ãšã 。
D: æąäēŦをといえば、゚ã‚ĢイツãƒĒãƒŧが思いæĩŽã‹ãļ。
Answer
D
Correct Sentence: æąäēŦといえば、゚ã‚ĢイツãƒĒãƒŧが思いæĩŽã‹ãļ。
Explanation: といえば attaches directly to the noun or quoted expression. A case particle such as を cannot come between the noun and といえば.

4: Which sentence is grammatically incorrect?

Choices
A: ã“ãŽæĄäģļをæē€ãŸã›ã°、ä礿›ã§ãã‚‹ã¯ãšã 。
B: åŊŧは毎æ—Ĩ文åĨã‚’č¨€ã†ã°ã‹ã‚Šã§、äŊ•もしãĒい。
C: ã“ãŽį´å“æ›¸ã¯å¤§åˆ‡ãĒæ›¸éĄžãŋたいだ。
D: ã“ãŽæąšã‚Œã¯čŊãĄã‚‹ã‚“ã˜ã‚ƒãĒいかと思う。
Answer
B
Correct Sentence: åŊŧは毎æ—Ĩ文åĨã‚’č¨€ãŖãĻばかりで、äŊ•もしãĒい。
Explanation: When ばかり expresses a habitual action of “doing nothing but …,” it follows the verb in the te-form.

✅ Choice

Choose the best option to complete the sentence.
Goal: Practice selecting the correct grammar form according to the context.

1: A: ãƒãƒƒãƒˆã§č˛ˇã„į‰Šã™ã‚‹ã“ã¨ãŒå¤šã„ã§ã™。 B: 通äŋĄč˛ŠåŖ˛(      )、先æ—Ĩé ŧんだブãƒŧãƒ„ãŒãžã åąŠã‹ãĒいんです。

Choices
A: ãĢついãĻ
B: ã¨ã„ãŖãŸã‚‰
C: といえば
D: というと
Answer
C
Explanation: といえば is used to introduce a topic related to something that has just been mentioned, similar to "speaking of..." or "since you mentioned...". In this dialogue, Speaker A mentions shopping online, and Speaker B naturally uses 通äŋĄč˛ŠåŖ˛ã¨ã„えば to connect that topic to a personal experience. Although というと and ã¨ã„ãŖãŸã‚‰ are sometimes translated similarly, they are used differently. というと typically asks for clarification or introduces a common association (e.g. "When you say X..." or "Speaking of X, people think of..."), while ã¨ã„ãŖãŸã‚‰ expresses strong emotion or emphasis (e.g. surprise, annoyance, or admiration). Therefore, といえば is the only option that naturally fits this conversation.

2: こぎブãƒŧツ、ã‚ĩイã‚ēがきつい(      )、åąĨいãĻãŋã‚‹ã¨ãĄã‚‡ã†ãŠã‚ˆã‹ãŖãŸ。

Choices
A: ã¨æ€ãŖãĻ
B: と思い
C: かと思う
D: ã‹ã¨æ€ãŖãŸãŒ
Answer
D
Explanation: ~ã‹ã¨æ€ãŖãŸãŒ is used when an initial expectation turns out to be wrong. It means "I thought maybe..." or "I thought that..., but...". In this sentence, the speaker expected the boots to be too tight, but after trying them on, they fit perfectly.

3: åŊŧは毎æ—Ĩ、゚ニãƒŧã‚ĢãƒŧをåąĨいãĻ(      )いる。

Choices
A: ばかりぎ
B: しか
C: だけ
D: ばかり
Answer
D
Explanation: 「V-ãĻばかりいる」 means “does nothing but V”. だけ cannot follow the ãĻ-form, and しか requires a negative verb.

4: åŊŧåĨŗ、ä슿—ĨはæĨãĒい(      )よ。

Choices
A: ãŋたいãĒ
B: ãŋたいだ
C: ãŋたく
D: ãŋたいãĢ
Answer
B
Explanation: ãŋたいだ is commonly used in informal conversation to express a guess or conclusion based on available information or evidence. It means "it looks like..." or "it seems that...".

✏️ Correct

Find and fix the grammar mistake in the sentence.
Goal: Practice applying grammar rules and producing accurate Japanese sentences.

1: ä礿›æĄäģļをいうと、ãƒŦã‚ˇãƒŧトとã‚ŋグがåŋ…čĻã§ã™。

Answer
ä礿›æĄäģļというと、ãƒŦã‚ˇãƒŧトとã‚ŋグがåŋ…čĻã§ã™。
Explanation: N + というと is a fixed pattern used to introduce a topic, similar to "speaking of..." or "when it comes to...". In this sentence, ä礿›æĄäģļというと means "speaking of exchange conditions". The particle を cannot be used because č¨€ã† (いう) is a verb meaning "to say," and Nをいう does not create this topic-introducing expression. The phrase というと should be treated as one grammatical unit.

2: åŊŧã¯ã“ãŽæ›¸éĄžãŽå†…åŽšã‚’å…¨éƒ¨ã‚ã‹ã‚Šãžã™ã‚ˆã†ã 。

Answer
åŊŧã¯ã“ãŽæ›¸éĄžãŽå†…åŽšã‚’å…¨éƒ¨ã‚ã‹ã‚‹ã‚ˆã†ã 。
Explanation: ようだ attaches to the plain form of verbs, not the polite form. Therefore, わかるようだ is correct, while わかりぞすようだ is incorrect. Here, ようだ expresses the speaker's guess or impression that he understands the entire document.

3: これはå¤ĸã‚ˆã†ãŽčŠąã 。

Answer
これはå¤ĸぎようãĒčŠąã 。
Explanation: When よう modifies a noun, the pattern is N + ぎ + ようãĒ + N. In this sentence, å¤ĸぎようãĒ芹 means "a story like a dream" or "a dream-like story." The particle ぎ comes after the noun, and ようãĒ directly modifies the following noun. å¤ĸã‚ˆã†ãŽčŠą is incorrect because the word order and particles do not match this pattern.

2. Practice

Goal: Practice using the grammar in different situations.
Apply the grammar by correcting, transforming, and creating sentences.

🔍 Find the Error

Identify the sentence that contains a grammar mistake.
Goal: Train your ability to notice incorrect grammar patterns and avoid common mistakes.

1: Which sentence is grammatically incorrect?

Choices
A: 通äŋĄč˛ŠåŖ˛ã¨ã„うと、čŋ”品がéĸ倒だ。
B: こぎブãƒŧツはきついんじゃãĒい?
C: åŊŧはæĨã‚‹ã¯ãšã ãŖãŸãŽãĢ、æĨãĒã‹ãŖãŸ。
D: ã“ãŽã‚ąãƒŧキ、おいしいãĒãŋたいだね。
Answer
D
Correct Sentence: ã“ãŽã‚ąãƒŧキ、おいしいãŋたいだね。
Explanation: ãŋたいだ follows different patterns depending on the word type. An i-adjective attaches directly to ãŋたいだ without ãĒ. Therefore, おいしいãŋたいだ is correct, while おいしいãĒãŋたいだ is incorrect. The particle ãĒ is only used when a ãĒ-adjective modifies a noun (e.g., 静かãĒäēē), not before ãŋたいだ.

2: Which sentence is grammatically incorrect?

Choices
A: あぎ映į”ģはéĸį™Ŋã‹ãŖãŸã ã‹ã¨æ€ãŖãŸã‚‰、途中でéŖŊきた。
B: こぎ手įļšãã¯įĒ“åŖã§ã™ã‚‹ã‚“ã˜ã‚ƒãĒい?
C: åŊŧã¯ã‚‚ã†į€ã„ãĻいるはずだからé›ģčŠąã—ãĻãŋよう。
D: こぎ゚ニãƒŧã‚ĢãƒŧはčģŊくãĻ、ぞるで靴下ãŋたいだ。
Answer
A
Correct Sentence: あぎ映į”ģはéĸį™Ŋã‹ãŖãŸã‹ã¨æ€ãŖãŸã‚‰、途中でéŖŊきた。
Explanation: ~ã‹ã¨æ€ãŖãŸã‚‰ is used when something happens differently from what was expected, meaning "I thought that..., but then...". It attaches to the plain form of verbs and adjectives. Since éĸį™Ŋã‹ãŖãŸ is the past form of an i-adjective, it connects directly to ã‹ã¨æ€ãŖãŸã‚‰. The particle だ is not used after i-adjectives, so éĸį™Ŋã‹ãŖãŸã ã‹ã¨æ€ãŖãŸã‚‰ is incorrect.

3: Which sentence is grammatically incorrect?

Choices
A: こぎåē—ぎã‚ĩãƒŧãƒ“ã‚šã¯ä¸å¯§ãŖãĻčžã„ãŸã‘ãŠ、æœŦåŊ“かãĒ。
B: こぎブãƒŧツ、きついんじゃãĒい?
C: あぎäēēはæ—ĨæœŦäēēぎはずだ。
D: ä슿—Ĩは雨が降るãŋたいだよ。
Answer
A
Correct Sentence: こぎåē—ぎã‚ĩãƒŧãƒ“ã‚šã¯ä¸å¯§ã ãŖãĻčžã„ãŸã‘ãŠ、æœŦåŊ“かãĒ。
Explanation: When ãŖãĻ is used for hearsay after a na-adjective stem, だ must appear before ãŖãĻ. It should be ä¸å¯§ã ãŖãĻ.

4: Which sentence is grammatically incorrect?

Choices
A: 通äŋĄč˛ŠåŖ˛ã¨ã„うと、ã‚„ãŖãąã‚Šäžŋ刊さが魅力だね。
B: ã“ãŽéƒ¨åą‹ã¯é™ã‹ãŋたいね。
C: ã“ãŽæ›¸éĄžã¯æ˜Žæ—Ĩ提å‡ēすればいいんじゃãĒい?
D: あぎãƒŦã‚šãƒˆãƒŠãƒŗã¯æœ‰åã¯ãšã 。
Answer
D
Correct Sentence: あぎãƒŦã‚šãƒˆãƒŠãƒŗã¯æœ‰åãĒはずだ。
Explanation: はずだ follows different patterns depending on the type of word. A na-adjective requires ãĒ before はずだ. Therefore, 有名ãĒはずだ is correct, while 有名はずだ is incorrect. Compare: æĨるはずだ (verb), éĢ˜ã„ã¯ãšã  (i-adjective), 有名ãĒはずだ (na-adjective), and å­Ļį”ŸãŽã¯ãšã  (noun).

5: Which sentence is grammatically incorrect?

Choices
A: あぎåē—はä슿—Ĩäŧ‘館ぎはずですが、įĸēčĒã—ãžã—ã‚‡ã†。
B: ã“ãŽéƒ¨åą‹ã¯é™ã‹ã¯ãšã 。
C: åŊŧはもうčĩˇããŸã‹ã¨æ€ãŖãŸã‘お、ぞだ寝ãĻいた。
D: こぎ゚ニãƒŧã‚ĢãƒŧはčģŊいãŋたいで、åąĨきやすい。
Answer
B
Correct Sentence: ã“ãŽéƒ¨åą‹ã¯é™ã‹ãĒはずだ。
Explanation: D na-adjective needs ãĒ before はずだ. 静かはずだ is wrong; it must be 静かãĒはずだ.

✏️ Correct

Find and fix the grammar mistake in the sentence.
Goal: Practice applying grammar rules and producing accurate Japanese sentences.

1: åŊŧã¯ãžã ããŽæƒ…å ąã‚’įŸĨらãĒいぎはずだ。

Answer
åŊŧã¯ãžã ããŽæƒ…å ąã‚’įŸĨらãĒいはずだ。
Explanation: はずだ follows different patterns depending on the word type. The negative form of a verb (~ãĒい) behaves like an i-adjective, so it connects directly to はずだ without ぎ. Therefore, įŸĨらãĒいはずだ is correct, while įŸĨらãĒいぎはずだ is incorrect. The particle ぎ is only used before はずだ with nouns (e.g., å­Ļį”ŸãŽã¯ãšã ).

2: åŧŸã¯æ¯Žæ—Ĩ遊ãļばかりいãĻ、全į„ļ勉åŧˇã—ãĒい。

Answer
åŧŸã¯æ¯Žæ—Ĩ遊んでばかりいãĻ、全į„ļ勉åŧˇã—ãĒい。
Explanation: The pattern for “does nothing but …” is V-ãĻ form + ばかり. The dictionary form cannot be used here.

3: åŊŧはéĸ¨ãŽã‚ˆã†ãĒčĩ°ã‚‹。

Answer
åŊŧはéĸ¨ãŽã‚ˆã†ãĢčĩ°ã‚‹。
Explanation: ぎようãĒ and ぎようãĢ have different functions. N + ぎようãĒ + noun is used when describing a noun ("a noun like N"), while N + ぎようãĢ + verb is used to describe the manner of an action ("do something like N"). Since čĩ°ã‚‹ is a verb, the correct form is éĸ¨ãŽã‚ˆã†ãĢčĩ°ã‚‹, not éĸ¨ãŽã‚ˆã†ãĒčĩ°ã‚‹.

4: 夏だというと、æĩˇã‚„芹įĢ大äŧšãŒæ€ã„å‡ēされる。

Answer
夏というと、æĩˇã‚„芹įĢ大äŧšãŒæ€ã„å‡ēされる。
Explanation: N + というと is a fixed expression used to introduce a topic, similar to "speaking of..." or "when it comes to...". When using this pattern, a noun is followed directly by というと without だ. Therefore, 夏というと is correct, while 夏だというと is incorrect in this context.

5: ブãƒŧツぎã‚ŋã‚°ã¯ãŖãĻ、åˆ‡ãŖãĻも大丈å¤Ģですか。

Answer
ブãƒŧツぎã‚ŋã‚°ãŖãĻ、åˆ‡ãŖãĻも大丈å¤Ģですか。
Explanation: 「は」 and 「ãŖãĻ」 cannot be stacked to mark the same topic. Use either 「ãŖãĻ」 alone in casual speech.

✏️ Rewrite

Rewrite the sentence using the given grammar pattern.
Goal: Practice expressing the same idea using different grammar structures.

1: ã‚ŋグをčĻ‹ãŸã‚‰、洗æŋ¯æŠŸã§æ´—えãĒいかもしれãĒい。

Rewrite the sentence using: …んじゃãĒい
Answer
ã‚ŋグをčĻ‹ãŸã‚‰、洗æŋ¯æŠŸã§æ´—えãĒいんじゃãĒい?
Explanation: ~んじゃãĒい? expresses a casual guess or assumption while asking for confirmation. It can sometimes translate similarly to "maybe...", but unlike ~かもしれãĒい, it suggests that the speaker has some reason or evidence for the guess and expects the listener to agree or confirm. Here, 洗æŋ¯æŠŸã§æ´—えãĒいんじゃãĒい? means "I think it can't be washed in a washing machine, right?"

2: ã‚ĢãƒŦãƒŗãƒ€ãƒŧでįĸēčĒã—ãŸãŽã§、ä슿—Ĩはäŧ‘館æ—Ĩだと思う。

Rewrite the sentence using: …はずだ
Answer
ã‚ĢãƒŦãƒŗãƒ€ãƒŧでįĸēčĒã—ãŸãŽã§、ä슿—Ĩはäŧ‘館æ—Ĩぎはずだ。
Explanation: はずだ expresses a logical expectation based on evidence or information. It is stronger than a simple opinion with と思う. In this sentence, the speaker checked the calendar, so ä슿—Ĩはäŧ‘館æ—Ĩぎはずだ means "Today should be a closed day based on the information from the calendar." Since äŧ‘館æ—Ĩ is a noun, it takes ぎ before はずだ.

3: ã“ãŽį´å“æ›¸、もう一åēĻよくčĒ­ã‚“ã ãģうがいいと思うよ。

Rewrite the sentence using: …んじゃãĒい
Answer
ã“ãŽį´å“æ›¸、もう一åēĻよくčĒ­ã‚“ã ãģうがいいんじゃãĒい?
Explanation: ~んじゃãĒい? can be used to give a suggestion or opinion in a softer, more conversational way. It often means "don't you think...?" or "wouldn't it be better to...?" and invites the listener to agree or confirm the idea. Here, čĒ­ã‚“ã ãģうがいいんじゃãĒい? changes the direct opinion čĒ­ã‚“ã ãģうがいいと思う into a more collaborative suggestion.

4: åŊŧåĨŗãŽčŠąã—æ–šã¯ã‚ĸナã‚Ļãƒŗã‚ĩãƒŧぎようãĢ丁寧だ。

Rewrite the sentence using: …ãŋたい
Answer
åŊŧåĨŗãŽčŠąã—æ–šã¯ã‚ĸナã‚Ļãƒŗã‚ĩãƒŧãŋたいãĢ丁寧だ。
Explanation: ãŋたいãĢ is an informal expression used to show resemblance in the way something is done. It can replace ぎようãĢ in casual speech. In this sentence, ã‚ĸナã‚Ļãƒŗã‚ĩãƒŧãŋたいãĢ丁寧だ means "as politely as an announcer" or "polite like an announcer." Unlike ぎようãĢ, ãŋたいãĢ does not use ぎ after the noun.

5: こぎブãƒŧツ、デã‚ļã‚¤ãƒŗãŒã‚šãƒ‹ãƒŧã‚ĢãƒŧぎようãĢã‚ĢジãƒĨã‚ĸãƒĢでåąĨきやすい。

Rewrite the sentence using: …ãŋたい
Answer
こぎブãƒŧツ、デã‚ļã‚¤ãƒŗãŒã‚šãƒ‹ãƒŧã‚Ģãƒŧãŋたいでã‚ĢジãƒĨã‚ĸãƒĢでåąĨきやすい。
Explanation: ãŋたいだ is an informal expression used to show resemblance. When it connects to another description, it changes to ãŋたいで (the ãĻ-form of ãŋたいだ). Here, ゚ニãƒŧã‚Ģãƒŧãŋたいでã‚ĢジãƒĨã‚ĸãƒĢ means "it looks like a sneaker and is casual." The original ゚ニãƒŧã‚ĢãƒŧぎようãĢã‚ĢジãƒĨã‚ĸãƒĢ can be changed to the more casual ゚ニãƒŧã‚ĢãƒŧãŋたいãĢã‚ĢジãƒĨã‚ĸãƒĢ or ゚ニãƒŧã‚Ģãƒŧãŋたいでã‚ĢジãƒĨã‚ĸãƒĢ, depending on the intended nuance.

3. Review

Goal: Review and reinforce the grammar you learned.
Combine different exercise types to check your understanding and build confidence.

🔍 Find the Error

Identify the sentence that contains a grammar mistake.
Goal: Train your ability to notice incorrect grammar patterns and avoid common mistakes.

1: Which sentence is grammatically incorrect?

Choices
A: ä슿—Ĩは寒いãŋたいだから、ã‚ŗãƒŧãƒˆã‚’į€ã‚ˆã†。
B: äŧ‘ãŋぎæ—Ĩはいつも寝るばかりで、運動しãĒい。
C: åŊŧはå­Ļį”Ÿãŋたいだね。
D: ã“ãŽæąšã‚Œã¯å–ã‚Œã‚‹ã¯ãšã 。
Answer
B
Correct Sentence: äŧ‘ãŋぎæ—Ĩはいつも寝ãĻばかりで、運動しãĒい。
Explanation: V-ãĻばかり is used to express "doing nothing but V" or "spending time only doing V." The verb must be in the ãĻ-form before ばかり. Therefore, 寝ãĻばかりで is correct, while 寝るばかりで is incorrect in this meaning. Note that Vるばかりだ is a different pattern with a different meaning.

2: Which sentence is grammatically incorrect?

Choices
A: åŊŧはもうåŽļãĢį€ã„ãŸãŋたいだ。
B: ä슿—Ĩぎäŧšč­°ã¯åˆåžŒã‹ã‚‰ãŽã¯ãšã 。
C: こぎ商品をというと、ã™ãåŖ˛ã‚Šåˆ‡ã‚Œãã†ã 。
D: こぎブãƒŧツ、ãĄã‚‡ãŖã¨ãã¤ã„ã‚“ã˜ã‚ƒãĒいかãĒ。
Answer
C
Correct Sentence: こぎ商品というと、ã™ãåŖ˛ã‚Šåˆ‡ã‚Œãã†ã 。
Explanation: N というと does not use the particle を. こぎ商品をというと is ungrammatical; remove を.

3: Which sentence is grammatically incorrect?

Choices
A: åŊŧã¯ã‚‚ã†å¸°ãŖãŸã ãŋたいだ。
B: 通äŋĄč˛ŠåŖ˛ã¨ã„うと、åąŠããžã§æ™‚é–“ãŒã‹ã‹ã‚‹。
C: こぎã‚ŋグãĢä礿›æĄäģļが書いãĻあるんじゃãĒい?
D: ã“ãŽæąšã‚Œã¯æ´—ãˆã°čŊãĄã‚‹ã¯ãšã 。
Answer
A
Correct Sentence: åŊŧã¯ã‚‚ã†å¸°ãŖãŸãŋたいだ。
Explanation: ãŋたいだ attaches directly to the plain past form of a verb, without だ. å¸°ãŖãŸã ãŋたい is incorrect; it should be å¸°ãŖãŸãŋたいだ.

4: Which sentence is grammatically incorrect?

Choices
A: ã“ãŽæĄäģļãĒらä礿›ã—ãĻもらえるはずだ。
B: ã“ãŽã‚ąãƒŧã‚­ã¯į”˜ã„ã ã‚“ã˜ã‚ƒãĒい?
C: åŊŧã¯ã‚‚ã†å¸°ãŖãŸãŋたいだよ。é›ģ気がæļˆãˆãĻる。
D: æ—ĨæœŦæ–™į†ã¨ã„ãˆã°、ã‚„ãŖãąã‚Šå¯ŋ司だね。
Answer
B
Correct Sentence: ã“ãŽã‚ąãƒŧã‚­ã¯į”˜ã„ã‚“ã˜ã‚ƒãĒい?
Explanation: An i-adjective before んじゃãĒい must not take だ. į”˜ã„ã ã‚“ã˜ã‚ƒãĒい is wrong; it should be į”˜ã„ã‚“ã˜ã‚ƒãĒい.

✅ Choice

Choose the best option to complete the sentence.
Goal: Practice selecting the correct grammar form according to the context.

1: ã‚ŋグがついãĻいるから、新品ぎ(      )。

Choices
A: はずだ
B: わけだ
C: ずきだ
D: はずがãĒい
Answer
A
Explanation: 「~はずだ」 draws a logical conclusion: “it should be new”. わけだ would give a reason, and ずきだ implies obligation.

2: こぎ゚ニãƒŧã‚Ģãƒŧはã‚ĩイã‚ēが合う(      )から、大丈å¤Ģだと思う。

Choices
A: ずきだ
B: ã¯ãšã ãŖãŸ
C: はずだ
D: もぎだ
Answer
C
Explanation: 「はずだ」 conveys a logical deduction: “it should fit”. ずきだ expresses obligation, which is unnatural for describing shoe size.

3: įĸēかここãĢįŊŽã„た(      )よ。čĻ‹ãĻごらん。

Choices
A: はずãĒ
B: はずだ
C: ã¯ãšã ãŖãŸ
D: わけだ
Answer
B
Explanation: ~はずだ expresses a logical expectation based on memory or evidence. Here, the speaker still believes they left the item there and is surprised that it cannot be found. はずãĒ is ungrammatical, and わけだ expresses an explanatory conclusion rather than an expectation.

4: åŊŧåĨŗã¯ã„つも文åĨã‚’č¨€ãŖãĻ(      )いる。

Choices
A: ばかり
B: しか
C: だけ
D: ばかりãĢ
Answer
A
Explanation: 「N + ばかり + V」 means “does nothing but N”. ばかり fits the habitual, excessive nuance; ばかりãĢ would mean “just because”.

✏️ Correct

Find and fix the grammar mistake in the sentence.
Goal: Practice applying grammar rules and producing accurate Japanese sentences.

1: åŊŧはäģŠã‹ã‚‰å¯ãžã™ãŋたいだ。

Answer
åŊŧはäģŠã‹ã‚‰å¯ã‚‹ãŋたいだ。
Explanation: 「ãŋたいだ」 must follow the plain form, not the polite ぞす-form.

2: おįĨ­ã‚Šã‚’ã¨ã„ãŖãŸã‚‰、ã‚„ãŖãąã‚Šã“ãŽį”ēぎ夏įĨ­ã‚ŠãŒä¸€į•Ēだ。

Answer
おįĨ­ã‚Šã¨ã„ãŖãŸã‚‰、ã‚„ãŖãąã‚Šã“ãŽį”ēぎ夏įĨ­ã‚ŠãŒä¸€į•Ēだ。
Explanation: The set phrase is N + ã¨ã„ãŖãŸã‚‰, using the particle 「と」, not 「を」.

3: おうやらåŊŧã¯į—…æ°—ãĒようだ。

Answer
おうやらåŊŧã¯į—…æ°—ãŽã‚ˆã†ã 。
Explanation: For na-adjectives, the proper pattern before ようだ is ãĒ adj + ぎ + ようだ (e.g., į—…æ°—ãŽã‚ˆã†ã ), not į—…æ°—ãĒようだ.

✏️ Rewrite

Rewrite the sentence using the given grammar pattern.
Goal: Practice expressing the same idea using different grammar structures.

1: こぎ゚ニãƒŧã‚Ģãƒŧ、ãĄã‚‡ãŖã¨ãã¤ããĒいですか。

Rewrite the sentence using: N ãŖãĻ
Answer
こぎ゚ニãƒŧã‚ĢãƒŧãŖãĻ、ãĄã‚‡ãŖã¨ãã¤ããĒいですか。
Explanation: Using ãŖãĻ brings up the sneakers as a topic when casually asking for the listener’s opinion.

2: 通äŋĄč˛ŠåŖ˛ãŽãģうがåē—ã§č˛ˇã†ã‚ˆã‚ŠãšãŖã¨åŽ‰ã„ã¨æ€ã†。

Rewrite the sentence using: …んじゃãĒい
Answer
通äŋĄč˛ŠåŖ˛ãŽãģうがåē—ã§č˛ˇã†ã‚ˆã‚ŠãšãŖã¨åŽ‰ã„ã‚“ã˜ã‚ƒãĒい?
Explanation: Replacing と思う with んじゃãĒい keeps the opinion while sounding like a shared observation.

3: ã‚ŋグãĢ書いãĻあるã‚ĩイã‚ēをčĻ‹ãĻ、これãĒら大丈å¤Ģだと思いぞしたが、åŽŸéš›ã¯å°‘ã—ãã¤ã‹ãŖãŸ。

Rewrite the sentence using: ~ã‹ã¨æ€ãŖãŸ
Answer
ã‚ŋグãĢ書いãĻあるã‚ĩイã‚ēをčĻ‹ãĻ、これãĒら大丈å¤Ģかと思いぞしたが、åŽŸéš›ã¯å°‘ã—ãã¤ã‹ãŖãŸ。
Explanation: かと思いぞした turns the speaker’s feeling of reassurance into an impression, matching the act of checking the tag.
⚠️
AI-generated content
The dialogue, images, audio, and exercises on this page were generated with the help of artificial intelligence for Japanese study practice. All content has been reviewed, adapted, and organized.

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