We moved a little faster then, but not so fast that I had trouble keeping up.

She had trouble keeping up with him; her long skirt wasn't made for running.

He walked so quickly she'd had trouble keeping up with his stride.

Fortunately, he'd had no trouble keeping up with the group.

She walked so fast I had trouble keeping up with her.

United could now have even more trouble keeping up with its rivals.

He had a very decided limp, but seemed to have no trouble keeping up.

Some students said they had trouble keeping up with white classmates.

She kicks out and has no trouble keeping up with him.

The men had enough trouble keeping their spirits up as things were.