YOU SAID:

i play trumpet and it is fun

INTO JAPANESE

私はトランペットを再生し、それは楽しい

BACK INTO ENGLISH

I play the trumpet, it's fun

INTO JAPANESE

トランペットを吹いてたな

BACK INTO ENGLISH

Saw you play the trumpet.

INTO JAPANESE

トランペットを吹いてたな

BACK INTO ENGLISH

Saw you play the trumpet.