1 They saw him walk alan in the park
He was seen walk alan in the park
2 The teacher the watching the student work
The student work is being watched by the teacher
3 We smell something burn in the kitchen
Something is smelled burn int he kitchen
4 The boss has hidden Mary photocopy those the documentory
Mary has been hidden photocophy those the docmentory by the boss
5 He won't let you do that silly thing again
You will not be let do that silly thing again