YOU SAID:

tuck the duck in to bed and pat that duck on his head

INTO JAPANESE

カモを寝そべって、彼の頭の上に鴨を刺す

BACK INTO ENGLISH

Lay a duck and stab a duck on his head

INTO JAPANESE

カモを置いて頭の上にアヒルを刺す

BACK INTO ENGLISH

Put a duck and stick a duck on the head

INTO JAPANESE

アヒルを入れてアヒルを頭に刺す

BACK INTO ENGLISH

Put a duck and stick a duck on his head

INTO JAPANESE

アヒルを入れ、彼の頭にアヒルを刺す

BACK INTO ENGLISH

Put a duck and stick a duck on his head