I.he.she.it.we.you.they的be动词是什么

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I.he.she.it.we.you.they的be动词是什么
I.he.she.it.we.you.they的be动词是什么

I.he.she.it.we.you.they的be动词是什么
I am
he\she\it is
we are
you are
they are

am,is,is,is,are,are,are
过去式是
was,was,was,was,were,were,were

I——am/was
he,she,it--is/was
they,you,we--are/were

I am/was
she/he/it is/was
we/you/they are/were
be动词的现在时和过去时