I see him passing my house every day.

Didn't you hear the clock sticking?

I felt the car skidding.

She smelt something burning and saw smoke rising.

I watched them rehearsing the play.

③ catch, find, leave+ object + present participle. For example:

I caught him stealing the apples. (I found him doing this.)

If she catches you reading her diary, she will be furious.

I found him standing at the door.

I left him talking to Bob. = He was talking to Bob when I left.

④ spend/waste + an expression of time /money +v-ing. For example:

He spends two hours a day traveling.

Tom spends much money modernizing his house.

⑤ e busy +v.-in. For example:

She is/ was busy packing.

⑥ The v-ing can replace as/since/because +subject +verb. For example:

Knowing that he wouldn't be able to buy food on his journey he took large supplies with him.

Being a student he was naturally interested in museums.

⑦ When one action is immediately followed by another by the same subject, the first action can be expressed by a present participle. For example:

He rode away. He whistled as he went. = He rode away whistling.