1. They have told him about her success
⇒he have been told about her success
2,These students began to do their homework 2 hours ago
⇒these student have began to do their homework for 2 hours
3,We like going camping in the park on the weekend
⇒we are interested in going camping in the park on the weekend
4,Would you mind if i borrowed your pen?
⇒do you mind if i borrow your pen?