It's easy to understand his frustration, but history hasn't been very kind to impatient warriors.

I can understand his frustration, but he went too far.

From the first glance nothing seemed wrong, and I could understand his frustration.

But while I can understand his frustration, people have got to help now, to say positive things.

"I could understand their frustration, but if anyone is going to set illegal picks, it's them."

But some kids fail every class, and she understands their frustration.

She had understood the woman's frustration, feeling it so frequently herself.

We can understand the plaintiff's frustration with the Board's actions.

Martin's teammates said they could understand his frustration during the game.

That is the whole intention, but I can fully understand your frustration.