YOU SAID:

the worst time i went to the mall was when my arm got cut off

INTO JAPANESE

モールに行った最悪の時は、腕が切れたときでした

BACK INTO ENGLISH

The worst time I went to the mall was when my arms were cut

INTO JAPANESE

モールに行った最悪の時は、腕が切られた時でした

BACK INTO ENGLISH

The worst time I went to the mall was when my arms were cut