YOU SAID:
my horse crashed my birthday party
INTO JAPANESE
私の誕生日パーティーで私の馬が墜落した
BACK INTO ENGLISH
my horse crashed at my birthday party
INTO JAPANESE
私の誕生日パーティーで私の馬が墜落した
BACK INTO ENGLISH
my horse crashed at my birthday party
You've done this before, haven't you.