YOU SAID:

I bust a nut when my sister came in my room

INTO JAPANESE

私の妹が私の部屋に来たとき私は木の実を破裂させる

BACK INTO ENGLISH

I burst the nuts when my sister came to my room

INTO JAPANESE

私の妹が私の部屋に来たとき私はナッツを破った

BACK INTO ENGLISH

I broke nuts when my sister came to my room

INTO JAPANESE

私の妹が私の部屋に来たとき私はナッツを壊した

BACK INTO ENGLISH

I broke nuts when my sister came to my room