There are those who might doubt our ability to do all these things at once.

Is there any reason to doubt his ability to act that part?

But he does not doubt his ability to round up support.

Yet as the weeks went by, I started to doubt his ability to offer life lessons.

But now the rules of the game were changing yet again, and she began to doubt her ability to keep up.

But still she doubted her ability to hold out against him.

He wouldn't have wanted to say anything to make you doubt your abilities.

How many people would doubt his ability to be a guardian to anyone?

Lloyd's says no one should doubt its ability to pay now.

Not for a minute did my sister and I doubt our mother's ability to get us into the hotel.