美味しい
おいしい
delicious, tasty
i-adjective
Conjugation Table
Present
美味しい
Negative
美味しくない
Past
美味しかった
Past Negative
美味しくなかった
Te Form
美味しくて
Adverbial
美味しく
Conditional
美味しければ
Presumptive
美味しいでしょう
Example Sentences
これは美味しいです。
This is delicious.
Kore wa oishii desu.
昨日のケーキは美味しかったです。
The cake yesterday was delicious.
Kinō no kēki wa oishikatta desu.
このスープは美味しくないです。
This soup is not tasty.
Kono sūpu wa oishikunai desu.
Grammar Notes & Usage Tips
•Basic Conjugation Tip**: Since 美味しい (おいしい) is an i-adjective, you can easily make it negative by dropping the final い and adding くない, turning it into 美味しくない (おいしくない) to say "not delicious."
•Past Tense Made Easy**: To express that something "was delicious," change 美味しい to 美味しかった (おいしかった) by replacing the い with かった, which is the past tense form for i-adjectives.
•Using with Particles**: When describing something as delicious, use the particle が to mark the subject, like in ケーキが美味しい (けーきがおいしい), meaning "The cake is delicious."
•Joining Sentences Smoothly**: To connect 美味しい with another adjective, replace the final い with くて, as in 美味しくて安い (おいしくてやすい), meaning "delicious and cheap," keeping your sentences flowing naturally.
•い-adjective: Conjugates by changing the い ending