

DO AS AN ORDINARY VERB
When do has meaning (rather than a grammatical function) it is treated as an ordinary verb:
Examples:
a.She didn't do her homework last night.
b.They didn't do enough to help her.
c.I did not do the last question.
d.Does she do the cooking at home ?
e.Do you do homework every night ?
TO HAVE, HAVE GOT , TO HAVE TO , AS ORDINARY VERBS
A. When 'to have' and 'have got' = 'to own', 'to possess'
Examples:
a.She has (= owns) an apartment in Paris.
She has got an apartment in Paris.
b.I don't have (= don't possess) a car.
*I haven't got a car.c.Do they have a boat ?
*Have they got a boat?HAVE = HAVE GOT = POSSESS
B. 'To have to' for obligation and necessity
To have to = must : expresses an obligation or a necessity
FORM :
Affirmative :
Subject + have to +infinitive of verb
I have to leave now.
Negative :
Subject+ do not / does not + have to +infinitive of verb
We do not have to eat here.
Interrogative :
Do or does +subject + have to +infinitive of verb
Does she have to work today ?
Examples:
a. I have to finish this work before 17.00.
b. Do you have to leave tomorrow ?
c. She doesn't have to read that book.
d. Does he have to play tennis ?
C. 'To have' when it means 'to take'
Examples:
a. I have a bath every night.
b. She has breakfast at 6.00 o'clock.
c. They have lunch at midday.
d. We don't have lunch.
e. He doesn't have a sleep in the afternoon.
f. Do you have milk with your coffee ?In this sense 'to have' is always used with 'DO' to form the interrogative and negative.
BE AS AN ORDINARY VERB
Interrogative and negative forms are by simple inversion.
a. I am French.
b. Are you French?
c. I am not French.
Examples:
a. She is thirty seven years old.
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b. Are they doctors?
c. He isn't an accountant.
d. We aren't cold.
e. Is he your brother?
