YOU SAID:

if you put a mouse on a fish, will that fish become a mouse?

INTO JAPANESE

魚にマウスを配置する場合、マウスを魚になるだろうか。

BACK INTO ENGLISH

If you place the mouse on the fish, the mouse comes to fish?

INTO JAPANESE

魚の上にマウスを置くと、マウスは魚になるか。

BACK INTO ENGLISH

Put the mouse on the fish, and fish is the mouse?

INTO JAPANESE

魚は、上、マウスを置くし、魚がマウス?

BACK INTO ENGLISH

The fish on the mouse and the mouse's fish?

INTO JAPANESE

マウスの魚とマウスの魚ですか。

BACK INTO ENGLISH

Is the mouse and mouse fish?

INTO JAPANESE

マウスとマウス魚ですか。

BACK INTO ENGLISH

Is the mouse and mouse fish?