推荐回答（5个）
首先要明白be动词在句子中的作用1.做连系动词可用下边的结构： 主语 + be +表语，这里的表语可以是名词，代词，形容词，介词词组，动词不定式等。例如：I am a teacher(名词)He is at home (介词词液悔组孝宴）My hobby is swimming.(此处闹慎正swimming是动名词).My job is to teach English.(动词不定式）2.作助动词， be + 动词现在分词 可构成进行时态3. 作助动词， be + 动词过去分词 可用于被动语态
1、Be动词做连系动词可用下边的结构： 主语 + be +表语，这里的表语可以是名词，腊盯代词，形容词，介词词组，动词不定式等。
2、Be动词作助动词， be + 动词现在乎老分词 可构成进行时态3. 作助动词， be + 动词过去分词 可用于被动语态。
拓展资料
Be动词的用法
1、这个词是由一个介词和一个动词复合而成的。
The word is compounded of a preposition and a verb.
2、动词可细分为及物动词和不及岁局升物动词。
The verbs were subdivided into transitive and intransitive categories.
3、参看第20页（动词句型13）。
See page 20 ( verb pattern 13).
4、避免使用复杂的动词结构。
Avoid complex verbal constructions.
5、在这个句子中你应该用及物动词。
You should use the transitive verb in the sentence.
6、谓语动词的数和人称与其主语一致。
The verb agrees with its subject in number am person.
7、在i study english一句中动词为主动语态形式。
In "I study english" the verb is active.
8、动词与主语必须在人称和数上一致。
There must exist agreement of a verb and a subject in person and number.
9、这是个陈述语气的动词。
It's an indicative verb.
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