That boy hit her child on purpose.
- Ce garçon a fait exprès de frapper son fils.
I wanted to hit him, but he ran away from me.
- Je voulais le frapper, mais il m'a fui.
When happiness comes knocking at your door.
- Quand le bonheur vient frapper à votre porte.
He tried knocking at the door.
- Il essaya de frapper à la porte.