YOU SAID:

In my bedroom I had a tv but I broke it

INTO JAPANESE

私の寝室にはテレビがありましたが、壊れました

BACK INTO ENGLISH

There was a TV in my bedroom but it was broken

INTO JAPANESE

私の寝室にテレビがありましたが、壊れていました

BACK INTO ENGLISH

There was a TV in my bedroom but it was broken