Auxiliary Verbs
'DO', 'BE' and 'HAVE' are the English auxiliary verbs used in a negative structure, a question or to show tense. DESCRIPTIONS OF ENGLISH AUXILIARY VERBS: 1/ 'DO', 'DON'T', 'DOES' and 'DOESN'T' are used for questions and negatives in the Present Simple Tense, and 'DID' and 'DIDN'T' are used in the...

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