“Time changes all things; there is no reason why language should escape this universal law” – de Saussure
Of course, there are two types of adjectives. There are な adjectives and い adjectives. As is often the case, the な adjectives get to act almost just like nouns, though there is a couple of slight differences.
なadj + な + 時
なadj + だった + 時
The only change is that the な takes the place of the の. For past tense, it’s exactly the same as nouns. Adjectives are a little different, though these patterns should look familiar.
いadj + 時
いadj-past-tense + 時
It’s much better to see some examples in action, though.
a 静かな時
When it is quiet
a 静かだった時
When it was quiet
a 広い時
When it is wide
a 広かった時
When it was wide
It’s not too much to learn, but take a moment right here to remember the patterns. Here’s some example sentences to help you.
a 静かな時に早く寝る。
When it’s quiet I quickly sleep.
a 静かだった時に映画を見た。
When it was quiet I watched a movie.
a 暑い時にシャツを脱ぐ。
When it’s warm I take off my shirt.
a 暑かった時にカナダに旅行した。
When it was hot I traveled to Canada.
Are you starting to see how these come together? Verbs are going to wrap everything up. They’re the most complicated, but you’ve been working your way up to this point.