YOU SAID:

there were 3 little monkeys jumping on the bed

INTO JAPANESE

3匹の小猿がベッドの上で飛び跳ねていました

BACK INTO ENGLISH

Three little monkeys were jumping on the bed

INTO JAPANESE

3匹の子猿がベッドの上で飛び跳ねていました

BACK INTO ENGLISH

Three baby monkeys were jumping on the bed

INTO JAPANESE

3匹の子猿がベッドの上で飛び跳ねていた

BACK INTO ENGLISH

Three baby monkeys were jumping on the bed