Indicating Position and Location
在 + nơi chốn / địa điểmThis sentence pattern is used to specify where a person or thing is. '在' is a preposition of location, placed before the place. It can be used with words like '家里' (at home), '这儿' (here), '前边' (in front)...
妈妈在床上。
Mom is on the bed.
电视机在房间里。
The television is in the room.