There is / There are

There is a blue armchair in the living room.

There isn't a lamp. There are two lamps in the bedroom.

There are three chairs in the dinning room.

There isn't a bath. There is a shower in the bathroom.

There is a cooker in the kitchen.

There isn't a washbasin in the kitchen. The washbasin is in the bathroom.

There is a bed and a lamp in the bedroom.

There are two chairs in the dining room.

There is a blue sofa in the living room.