"No; I should only regret if the horse had not proved good."

Yes, as a tool I may prove good for something.

But the large numbers proved too good to be true.

The results proved almost too good, soon after in rehearsal.

The experience has proved good for both of them.

But as is the case with any bargain, some of them may prove too good to be true.

But better has not proved good enough to slow the Japanese.

In July 1942 she proved as good as her word.

In the end, this once, he would prove as good as his word.

Whether the decision proved good or bad made no difference.