YOU SAID:

I went to the market and sat on the bananas

INTO JAPANESE

私は市場に行き、バナナの上に座った

BACK INTO ENGLISH

I went to the market and sat on a banana

INTO JAPANESE

市場に行ってバナナの上に座った

BACK INTO ENGLISH

Go to the market and sit on a banana

INTO JAPANESE

市場に行ってバナナの上に座る

BACK INTO ENGLISH

Go to the market and sit on a banana