YOU SAID:

let's have bananas for dinner tonight becausa i am a monkey

INTO JAPANESE

私はサルなので、今夜の夕食はバナナにしましょう

BACK INTO ENGLISH

I'm a monkey, so let's eat bananas for dinner tonight

INTO JAPANESE

私はサルなので、今夜の夕食はバナナを食べましょう

BACK INTO ENGLISH

I'm a monkey, so let's eat bananas for dinner tonight