是的動詞

在英語中，“是”（be)是一個系動詞，根據主語的不同，be動詞形式也不同，am(主語為I)，is(主語為she/he/it)，are(主語為we/you/they)。

例：

I am a teacher.

She/He is an engineer.

It's 8 o'clock now.

We are going to the library. Are you going with us?

They are going to play tennis this weekend.

是的第三人稱單數是is

be

v.有存在位於在(某處)(在某時或某地)發生

aux.與過去分詞連用構成被動語態與現在分詞連用構成進行時

第三人稱單數： is

現在分詞： being

過去式： was were

過去分詞： been 擴充套件資料

This is the one major drawback of the new system.