Make these sentences negative 1.There is a bookshelf by the window. 2.There are two girls in the room. 3.There is an armchair by the table. 4.There are two beds in the bedroom. Помогите пожалуйста!

Я не знаю точно, верно это или нет, но все же.1. There isnt a bookshelf by the window.2. There arent two girls in the room.3. There isnt an armchair by the table.4. There arent two beds in the bedroom.