We saw (he, to cross) the street and (to enter) the post-office

2. They did notice (the boy, to enter) the shop.

3. He felt (somebody, to touch) him by the hand.

4. I heard (she, to say) it

5. He watched (she, to put on) her skaters and (to go) to the ice

1. We saw him to cross the street and enter the post office.

2. They didn't notice the boy to enter the shop.

3. He felt somebody to touch him by the hand.

4. I heard her to say it. (можно : saying it.)

5. He watched her to put on her skates and to go to the ice.