помогите с английским плииииз

Переведите следующие предложения и определите функцию и форму инфинитива:

1)To walk in bad weather is not pleasant.
2)Our task is to master English.
3)I have come here to help you.
4)Some students of our Institute have been sent abroad to study English.
5)This is a good place to work in.
6)We knew the test to have been made.
7)They hope to be sent to the conference.
8)The work to be done here will take much time.
9)Helen opened the door to look into the room.
10) To enter this University requires a lot of hard work.
11) You may stay here.
12) To have met him was an event in my life.
13) The problem to be discussed at our meeting is very important.
14)I shall go for a walk after classes.
15)Mary was asked to look after the child.