YOU SAID:

I can not believe that my horses head got chopped off it makes me so sad

INTO JAPANESE

馬の頭が切れて悲しくなるなんて信じられない

BACK INTO ENGLISH

I can't believe you're gonna be sad when your horse's head is cut off.

INTO JAPANESE

馬の頭が切断されて悲しむなんて信じられない

BACK INTO ENGLISH

I can't believe I'm sad that my horse's head was cut off.

INTO JAPANESE

馬の頭が切り落とされて悲しんでいるなんて信じられない。

BACK INTO ENGLISH

I can't believe you're sad that your horse's head has been cut off.

INTO JAPANESE

馬の頭が切られて悲しんでるなんて信じられない

BACK INTO ENGLISH

I can't believe you're sad that your horse's head was cut off.

INTO JAPANESE

馬の頭が切り落とされて悲しんでるなんて信じられない

BACK INTO ENGLISH

I can't believe you're sad that your horse's head was cut off.