Notes On Forms of Auxiliary verbs - Present and Past Tense - CBSE Class 6 English Grammar
Auxiliary Verbs  are the verbs bedohavewill when they are followed by another verb (the full verb) in order to form a question, a negative sentence, a compound tense or the passive.

The verb "be"
The verb be can be used as an auxiliary and a full verb. As an auxiliary we use this verb for compound tenses and the passive voice. Note that be is an irregular verb:
1. Simple Present:
    I am, he/she/it is, we/you/they are

2. Simple Past:
I/he/she/it was, we/you/they were Auxiliary Verbs are the verbs bedohavewill when they are followed by another verb (the full verb) in order to form a question, a negative sentence, a compound tense or the passive.

The verb "be"
The verb be can be used as an auxiliary and a full verb. As an auxiliary we use this verb for compound tenses and the passive voice. Note that be is an irregular verb:
Simple Present:
am, he/she/it is, we/you/they are
Simple Past:
I/he/she/it was, we/you/they were
Past Participle:
Been
You can tell that in the following sentences be is an auxiliary because it is followed by another verb (the full verb). (For progressive forms use the "-ing" form of the full verb; for passive voice, use the past participle of the full verb.)

Summary

Auxiliary Verbs  are the verbs bedohavewill when they are followed by another verb (the full verb) in order to form a question, a negative sentence, a compound tense or the passive.

The verb "be"
The verb be can be used as an auxiliary and a full verb. As an auxiliary we use this verb for compound tenses and the passive voice. Note that be is an irregular verb:
1. Simple Present:
    I am, he/she/it is, we/you/they are

2. Simple Past:
I/he/she/it was, we/you/they were Auxiliary Verbs are the verbs bedohavewill when they are followed by another verb (the full verb) in order to form a question, a negative sentence, a compound tense or the passive.

The verb "be"
The verb be can be used as an auxiliary and a full verb. As an auxiliary we use this verb for compound tenses and the passive voice. Note that be is an irregular verb:
Simple Present:
am, he/she/it is, we/you/they are
Simple Past:
I/he/she/it was, we/you/they were
Past Participle:
Been
You can tell that in the following sentences be is an auxiliary because it is followed by another verb (the full verb). (For progressive forms use the "-ing" form of the full verb; for passive voice, use the past participle of the full verb.)
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