YOU SAID:
You idiot, I have horse riding in the evening I cant prank myself.
INTO JAPANESE
ばか、私は夕方に乗馬をしているので、いたずらはできません.
BACK INTO ENGLISH
Idiot, I'm riding in the evening, so I can't play pranks.
INTO JAPANESE
ばか、私は夕方に乗っているので、いたずらをすることはできません。
BACK INTO ENGLISH
Idiot, I'm riding in the evening, so I can't play pranks.
Okay, I get it, you like Translation Party.