His actions became the subject of impeachment.

He has a unique character.

He emphasized that there is still much to do, saying 'It's a long road ahead as the sun sets.'

He was working on that project round the clock.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is working round the clock.

This ancient document describes the use of antimony.

My opponens pollicis muscle hurts.

He subjugated this land and built a new kingdom.

He tapped the table with his finger.