CATCH, FIND, LEAVE, HAVE, GET + object + present participle

After these verbs, the present participle refers to an action that happens over a period of time:

He caught some students playing truant at the mall. (He caught some students who were playing truant at the mall.)
I found him sitting on a park bench reading a book. (When I arrived, he was sitting on a park bench reading a book.)
We left the others smoking outside the bar. (When we left, the others were smoking outside the bar.)
The teacher had the whole class singing Mary Had a Little Lamb. (The teacher persuaded the whole class to sing Mary Had a Little Lamb.)
His problems got him going to hospital for years. (As a result of his problems, he had to go to hospital for years.)