begun
(vbl.)begin的過去分詞
Be·gin v. i. [imp. & p. p. Began Begun p. pr. & vb. n. Beginning ]
1. To have or commence an independent or first existence; to take rise; to commence.
Vast chain of being! which from God began. --Pope.
2. To do the first act or the first part of an action; to enter upon or commence something new, as a new form or state of being, or course of action; to take the first step; to start. “Tears began to flow.”
When I begin, I will also make an end. --1 Sam. iii. 12.