English Auxiliary Verbs | BE, DO & HAVE

source: mmmEnglish    2017年10月24日
https://www.grammarly.com/mmmenglish
In this lesson, you'll learn my top tips to use these important 'helping' verbs correctly and dramatically improve your English grammar! 🙌🏼

A quick summary:
The auxiliary verb DO exists in the simple tenses.
The auxiliary verb BE exists in the continuous tenses - and in the passive voice
And the auxiliary verb HAVE exists in the perfect tenses.
Read the full transcript: https://www.mmmenglish.com/2017/10/24...

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