November 24, 2009...7:56 am

15.1 Negative simple present time

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In Lesson 13 we studied the primary verb do. In this lesson, the verb do is used as a helping verb.
We add do not or does not before a verb to make a negative sentence in the simple present time. We use does not for a 3rd person singular.

When we speak, we often use the short forms: don’t instead of do not and doesn’t instead of does not. However, it is not advisable to use contractions in exams or formal writing.
Positive Negative
I have a pet. I do not (don’t) have any pets.
We have a pet. We do not (don’t) have any pets.
You have a pet. You do not (don’t) have any pets.
They have a pet. They do not (don’t) have any pets.
He has a pet. He does not (doesn’t) have any pets.
She has a pet. She does not (doesn’t) have any pets.
My cat (it) has flees. My cat does not (doesn’t) have any flees.

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