GRAMMAR: DO AND HAVE AS ORDINARY VERBS

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: Ella no hizó su trabajo.
b.They didn't do enough to help her: No hicierón lo suficiente para ayudarla.
c.I did not do the last question: No hicé la última pregunta.
d.Does she do the cooking at home ?. Ella hace la comida en casa?
e.Do you do homework every night ?: Haces tus faenas (escolares) cada noche?

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: Ella tiene un apartamento en Paris.
She has got an apartment in Paris: same

b.I don't have (= don't possess) a car.: No tengo coche.
*I haven't got a car: No tengo coche.

c.Do they have a boat ?: Tiene un barco?
*Have they got a boat?: (same)

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: Tengo que irme ahora.

Negative :
Subject+ do not / does not + have to +infinitive of verb
We do not have to eat here: No tenemos que comer aquí.

Interrogative :
Do or does +subject + have to +infinitive of verb
Does she have to work today ? Tiene ella que trabajar hoy?.