serve a purpose

Yet they would serve a necessary purpose before the end.

They also begin to serve a different and very important purpose.

They both serve a different purpose, and will continue to do so for some time.

They should only be set up to serve a serious purpose.

And if he hasn't changed, talking to him would serve no purpose.

He had served his purpose and now the force could not care less what happened to him.

The last part wasn't true, of course, but I think my plan will serve its purpose.

I can't think what other purpose would be served by going outside.

No purpose would be served by any further game playing.

As for the dead ones, their purpose had been served.