YOU SAID:

There 16 cats who ate their tails before jumping on their duck's beds

INTO JAPANESE

アヒルのベッドに飛び乗る前に尻尾を食べた猫が16匹います

BACK INTO ENGLISH

16 cats ate their tails before jumping into the duck bed

INTO JAPANESE

16匹の猫がアヒルのベッドに飛び込む前に尻尾を食べました

BACK INTO ENGLISH

16 cats ate their tails before jumping into the duck bed