YOU SAID:

oh no i broke the vase and it broke

INTO JAPANESE

ああ、私は花瓶を壊して、それを壊した

BACK INTO ENGLISH

Oh, I broke the vase, I broke it.

INTO JAPANESE

花瓶を壊して壊した

BACK INTO ENGLISH

I broke the vase. I broke it.

INTO JAPANESE

私は花瓶を壊した。壊してしまった

BACK INTO ENGLISH

I broke the vase. I broke it.