Переведите предложения на русский язык, обращая внимание на употребление инфинитива, определите его форму.
1. She wants to give us some books.
2. My friend was very glad to have found the key of his room.
3. We want to be informed of our partner’s arrival.
4. They seem to be doing their home task now.
5. Mary was embarrassed not to have worn her best clothes.

а не могли бы вы написать форму инфинитива?

инфинитив - это все глаголы с to: to give, to have found, to be informed, to be doing, to have worn