1.Does he work in the office? He doesn`t work in the office.
2.Are there 25 employees in our office? There are no 25 employers in our office.
3.Is she in the negotiation room? She isn`t in the negotiation room.
4.Does our secretary have many duties in the company? Our secretary hasn`t many duties in the company/
5. Do they want to discuss some points with the President? They dont want to discuss some points with the President?