After a few minutes, he left his bed and went to investigate.

She quickly pulled over to the side of the road and went back to investigate.

Then he heard a car stop outside and went out the door to investigate.

When he did not stand for the evening call, a guard went in to investigate.

She goes to investigate but does not get a lead.

He'd sent a message six days back telling her he was going to investigate.

He heard sounds at the far end, and went to investigate.

A couple of years ago, I went to investigate and write a story about him.

The old man went to investigate, was given something, and stood aside.

He got up from his desk and went to investigate.