act for somebody
act on somebody's behalf

Or maybe I won't want to act for two years.

If anything, he'd always had to act for both of them.

Next, he must act for the benefit of his children.

However, his mother continued to act for the following nine years.

We act and hope for the best on the basis of our experience which is not very much to go by.

And maybe there was no reason to act for much of that time.

Each had to act for the benefit of all the others.

Do so, and I will act it for your lady.

In 1993, she gave up acting for a family life with her then husband.

Can you act normally with him for the next day or two?