YOU SAID:
i used to be a bicycle
INTO JAPANESE
私はかつて自転車でした
BACK INTO ENGLISH
I used to be a bicycle
INTO JAPANESE
昔は自転車だった
BACK INTO ENGLISH
I used to have a bicycle
INTO JAPANESE
昔は自転車だった
BACK INTO ENGLISH
I used to have a bicycle
That didn't even make that much sense in English.