1. He was seen go to the beach and some other people
He was seen TO go to the beach WITH some other people
2. I discovered that many change things were happened last night
I discovered that many CHANGEABLE things happened last night
3. He's believed to work for the CIA in 1970s
He's believed in working for the CIA in 1970s.
4. We're not let to cycle in the park, are we ?
We don't let to cycle in the park, do we ?
5. You should get your car to servise every 2 years.
You should get your car servised every 2 years.

6. Only coffee and dessert been server at reception yesterday
Only coffee and dessert were serverd at reception yesterday
7. When I have been finished my work, I'm going to take a walk
When I finish my work, I'm going to take a walk
8. Because we have a writing agreement, he won't be able to rise our rent for 2 years
Because we have a writing agreement, he can't rise our rent for 2 years
9. The heel of my shoes broke off and than my dress get tore in the elevator door
The heel of my shoes broke off and than my dress get stuck in the elevator door
10. When I crossed the road, I saw two men whose car was broken down
When I crossed the road, I saw two men whose car was breaking down.