強い
つよい
strong, powerful
i-adjective
Conjugation Table
Present
強い
Negative
強くない
Past
強かった
Past Negative
強くなかった
Te Form
強くて
Adverbial
強く
Conditional
強ければ
Presumptive
強いでしょう
Example Sentences
この犬は強いです。
This dog is strong.
Kono inu wa tsuyoi desu.
昨日の風は強くなかったです。
Yesterday's wind was not strong.
Kinō no kaze wa tsuyoku nakatta desu.
彼女は強くて優しいです。
She is strong and kind.
Kanojo wa tsuyokute yasashii desu.
Grammar Notes & Usage Tips
•Conjugation Basics**: Since 強い (つよい) is an i-adjective, its past tense form changes the ending to かった, so "was strong" becomes 強かった (つよかった).
•Negative Form**: To say "not strong," switch the い to くない, making it 強くない (つよくない). This is a handy pattern for all i-adjectives!
•Using with Nouns**: When describing a noun, place 強い directly before it, like 強い風 (つよいかぜ) for "strong wind." No particle is needed between the adjective and the noun.
•Connecting Sentences**: To link sentences with adjectives, change the い to くて, so "strong and..." becomes 強くて (つよくて). This is great for combining ideas, like "strong and fast" - 強くて速い (つよくてはやい).
•い-adjective: Conjugates by changing the い ending