I caught at his arm, but too late to stop him.

She caught at his arm and tried to stop him.

She caught at his arm as he neared the next turn.

I started to leave when she suddenly sat up and caught at my arm.

She caught at his arm as if he had started to fall.

He caught at my arm when I bent over him.

"She caught at his arm, trying to hold him back."

I started to step away from him but he suddenly caught at my arm.

She caught at his arm and was dragged along with him.

She caught at his arm, shook him with a fierce energy.