My 4-year old may have trouble identifying one in a picture.

I didn't think anyone would have trouble identifying that one.

But I'm sure we wouldn't have any trouble identifying him.

In fact, several residents on board had trouble identifying the day.

I'm one of those people who has trouble identifying someone from a photograph, and a drawing.

In theory, he had no trouble identifying with her conflict.

Though he'd only met the man once, Grant had no trouble identifying the voice.

Folk whose eyes must see through air and water both would have trouble identifying him.

I have no trouble identifying when the Yankees are playing.

He frowned, as if having trouble identifying the voice on the other end.