have a hard time
have a rough time
have a difficult time

Now, she has a chance to make up for another difficult time in her past.

Before we had a difficult time and now life is getting better.

Then again, he was having a difficult time thinking at all.

He became my chief of staff at a difficult time.

She and I are having a bit of a difficult time at the moment.

He is just the person we need in these difficult times.

We were all going through a difficult time in our lives.

But many groups have had a far more difficult time.

They have been particularly important during recent difficult economic times.

Told them my father was going through a difficult time.