YOU SAID:
my grandpa unplugged my phone so i unplugged his life support
INTO JAPANESE
おじいちゃんが私の電話を抜いたので、彼の生命維持装置を抜いた
BACK INTO ENGLISH
Grandpa unplugged my phone, so he unplugged his life support system
INTO JAPANESE
おじいちゃんは私の電話のプラグを抜いたので、彼は彼の生命維持システムのプラグを抜いた
BACK INTO ENGLISH
Grandpa unplugged my phone, so he unplugged his life support system
You've done this before, haven't you.