332. The present participle ends in -ing. It usually describes an action as taking place at the same time with some other action.

333. The present participle often refers to time preceding that denoted by the predicate verb.

334. The past participle is always associated with the idea of past time or completed action.

1. The past participle of a weak verb has the same form as the past tense.[40]

Present TensePast TensePast Participle
I mend chairs.I mended the chairs.The chairs are mended.
I sweep the rooms.I swept the rooms.The rooms are swept.
I seek treasure.I sought treasure.Treasure is sought.
I lose money.I lost money.The money is lost.

2. The past participle of strong verbs shows a change from the vowel of the present tense.

All strong verbs had originally the ending en (n) in the past participle, but this ending has been lost in many verbs.

Present TensePast TensePast Participle
He speaks.He spoke.(He has) spoken.
He draws.He drew.(He has) drawn.
He sings.He sang.(He has) sung.
He wins.He won.(He has) won.