Vowed

He vowed to give up smoking.

I vowed that I would never speak to her again.

Tom vowed to do everything within his power to protect the local wildlife.

Tom vowed he'd never do it.

He vowed to avenge his friend's death.

Tom vowed to rescue Mary.

They vowed to marry after the war.

Tom vowed to spread the truth about what was going on in the prison.

I vowed never to go back there.

I vowed never to go back.