worried 是形容詞,has been worried 是對(duì)be worried 在現(xiàn)在完成時(shí)態(tài)中的變形.此時(shí)be變形為been,
was worried 是 對(duì)be worried在一般過(guò)去時(shí)態(tài)中的變形,此時(shí)be變?yōu)閣as
is worried是對(duì)be worried在一般現(xiàn)在時(shí)態(tài)中的變形,此時(shí)be 變?yōu)閕s
在不同的時(shí)態(tài)中,會(huì)發(fā)生不同的變形
Dan Robinson has been worried all week.這里為什么有been,那was或者is之類怎么不行?
Dan Robinson has been worried all week.這里為什么有been,那was或者is之類怎么不行?
英語(yǔ)人氣：665 ℃時(shí)間：2020-05-24 12:15:45
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