YOU SAID:

I planted some bell pepper last year but it turned out to be tomatos

INTO JAPANESE

去年ピーマンを植えたけどトマトになってしまった

BACK INTO ENGLISH

I planted peppers last year, but they turned into tomatoes.

INTO JAPANESE

昨年ピーマンを植えたのですが、トマトになりました。

BACK INTO ENGLISH

I planted peppers last year, but they turned into tomatoes.