YOU SAID:
there are three people in this room
INTO JAPANESE
この部屋に 3 人は
BACK INTO ENGLISH
Three people in this room
INTO JAPANESE
この部屋で 3 人
BACK INTO ENGLISH
This room with 3 people
INTO JAPANESE
この部屋での
BACK INTO ENGLISH
This room
INTO JAPANESE
この部屋での
BACK INTO ENGLISH
This room
You've done this before, haven't you.