YOU SAID:
I am going to jump off a bed.
INTO JAPANESE
私はベッドから飛び降りるつもりです。
BACK INTO ENGLISH
I am going to jump out of bed.
INTO JAPANESE
私はベッドからジャンプするつもりです。
BACK INTO ENGLISH
I'm going to jump out of bed.
INTO JAPANESE
私はベッドからジャンプするつもりです。
BACK INTO ENGLISH
I'm going to jump out of bed.
That didn't even make that much sense in English.