You don't need to watch one in particular to understand others.

Talk about any side effects you are having or need to watch for.

To find out this you need to watch the film.

She'll need to watch she doesn't take too many of them.

"Though you may need to watch me in the future. "

Mothers need to watch what they say to their children.

If nothing else, you'll need me to watch your back.

"Do you think we need to watch during the day?"

She's just going to be in the way, and she doesn't need to watch anyway.

This is a point I think we need to watch.