Помогите пожалуйста с заданием

Перепишите и письменно переведите следующие предложения, в каждом предложении подчеркните инфинитив, укажите его форму и функцию.
1. It’s very difficult to drive a car in a big city.
2. At least 90 per cent of electric energy to be generated at present is a.c.
3. Newton made use of the three laws of motion to explain the movement of the Moon around the Earth and of the planets around the sun.
4. She wanted to be answered at once.
5. I have a lot of things to do and many problems to consider.
6. Water may be used to drive dynamos which generate electricity.