Learn Japanese Adjective Conjugation Rules Questions and Answers — Questions and Answers
Question 1: A student is describing a movie they watched yesterday. Which sentence correctly uses the past tense of the i-adjective 面白い (omoshiroi - interesting)?
- 昨日の映画は面白いでした。
- 昨日の映画は面白かったでした。
- 昨日の映画は面白かったです。 (Correct answer)
- 昨日の映画は面白いですた。
Correct answer: 昨日の映画は面白かったです。
To make an i-adjective past tense, the final い (i) is removed and replaced with かった (katta). To make it polite, です (desu) is added after the past tense form. Therefore, 面白い (omoshiroi) becomes 面白かった (omoshirokatta), and the polite form is 面白かったです (omoshirokatta desu).
Question 2: Which of the following is the correct plain negative form for the na-adjective 静か (shizuka - quiet)?
- 静かくない (shizukunai)
- 静かじゃない (shizuka janai) (Correct answer)
- 静かない (shizukanai)
- 静かではないです (shizuka dewa arimasen desu)
Correct answer: 静かじゃない (shizuka janai)
Na-adjectives conjugate like nouns. To make them negative in the plain form, you add じゃない (ja nai) or ではない (dewa nai) after the adjective. The other options incorrectly apply i-adjective conjugation rules or use redundant politeness markers.
Question 3: A speaker wants to say, 'This room is spacious and bright.' How should they correctly connect the two i-adjectives 広い (hiroi - spacious) and 明るい (akarui - bright)?
- この部屋は広くて、明るいです。 (Correct answer)
- この部屋は広い、明るいです。
- この部屋は広いで、明るいです。
- この部屋は広くてて、明るいです。
Correct answer: この部屋は広くて、明るいです。
To connect two i-adjectives, you change the first adjective into its te-form. For i-adjectives, this is done by dropping the final い (i) and adding くて (kute). So, 広い (hiroi) becomes 広くて (hirokute). The tense of the entire sentence is determined by the final adjective.
Question 4: How do you correctly place the na-adjective 有名 (yūmei - famous) before the noun レストラン (resutoran - restaurant) to mean 'a famous restaurant'?
- 有名レストラン (yūmei resutoran)
- 有名のレストラン (yūmei no resutoran)
- 有名なレストラン (yūmei na resutoran) (Correct answer)
- 有名いレストラン (yūmei i resutoran)
Correct answer: 有名なレストラン (yūmei na resutoran)
When a na-adjective directly modifies a noun that follows it, the particle な (na) must be placed between the adjective and the noun. This is the defining characteristic from which 'na-adjectives' get their name.
Question 5: The weather yesterday was not good. Which of the following sentences correctly expresses this using the past negative form of いい (ii - good)?
- 昨日の天気はいくなかったです。
- 昨日の天気はよくなかったです。 (Correct answer)
- 昨日の天気はよいないでした。
- 昨日の天気はいいじゃなかったです。
Correct answer: 昨日の天気はよくなかったです。
The adjective いい (ii) is irregular. For all conjugations other than the present affirmative, it uses its older form よい (yoi). To make the past negative, よい is first made negative (よくない - yokunai), and then this form is made past tense by changing the final い to かった, resulting in よくなった (yokunakatta). です is then added for politeness.
Question 6: A person is talking about their town in the past. Choose the correct way to say 'This town was lively': 「この町は＿＿＿＿。」
- にぎやかでした (nigiyaka deshita) (Correct answer)
- にぎやかった (nigiyakatta)
- にぎやかですた (nigiyaka desuta)
- にぎやかだったです (nigiyaka datta desu)
Correct answer: にぎやかでした (nigiyaka deshita)
To make a na-adjective past tense in the polite form, you replace the present tense polite copula です (desu) with the past tense polite copula でした (deshita). The adjective にぎやか (nigiyaka) itself does not change.
Learn Japanese Adjective Conjugation Rules Questions and Answers
A student is describing a movie they watched yesterday.
Which sentence correctly uses the past tense of the i-adjective 面白い (omoshiroi - interesting)?