YOU SAID:

My dog has a crush on my sister so I have to put him down

INTO JAPANESE

私の犬は妹に夢中なので、彼を降ろさなければなりません

BACK INTO ENGLISH

My dog is obsessed with my sister so I have to drop him off

INTO JAPANESE

私の犬は妹に夢中なので、降ろさなければなりません

BACK INTO ENGLISH

My dog is obsessed with my sister and has to be put down

INTO JAPANESE

私の犬は妹に夢中なので、殺さなければなりません

BACK INTO ENGLISH

my dog is crazy about my sister so i have to kill her

INTO JAPANESE

私の犬は妹に夢中なので、殺さなければなりません

BACK INTO ENGLISH

my dog is crazy about my sister so i have to kill her