begin过去分词怎么写

begin的过去分词： begun

v.开始;启动;起始;开始存在(或进行);起初是;本来是

第三人称单数： begins 现在分词： beginning 过去式： began

相关介绍

The window frames had begun to warp.

窗框已经开始变形。

He had begun to feel sleepy.

他已觉得困了。

The gold colouring had begun to rub off.

金黄色已经开始剥落了。

He's begun a series of personal attacks on my character

他开始对我进行一连串的人身攻击。