What to do once they found the general would be the tough part.

He did not have to ask what the tough part was.

But what would happen when she got to the tough part?

The tough part is when, not if, we have a big fire.

That was hard enough to take, but now comes the tough part.

And that was the tough part because she had never done such a thing alone.

I think the tough part will be the corporate office.

The toughest part for many international students is simply being away from home.

But he had an idea the toughest part might still be ahead.

The really tough part will come in the movies ahead.