I-Adjective Past

Form
I-Adjective Past
Level
N5
Used for
Expressing that something was true about an i-adjective in the past.
Rule

Remove the final -i and add -かった (-katta).

Worked examples

高い → 高かった (takai → takakatta), 楽しい → 楽しかった (tanoshii → tanoshikatta), 忙しい → 忙しかった (isogashii → isogashikatta)

Exceptions

よい (yoi) / いい (ii) changes to よかった (yokatta).

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