YOU SAID:
I'm in the livingroom with my computer
INTO JAPANESE
私は自分のコンピューターを持って居間にいます
BACK INTO ENGLISH
I have my computer in the living room
INTO JAPANESE
私は自分のコンピューターを居間に持っています
BACK INTO ENGLISH
I have my computer in the living room
You've done this before, haven't you.