Language Analysis -Assignment 2 Celta

3.but sooner or later we have to sleep (grammar)

Meaning:
'Have to'...is a necessary action that will or should be done

We use 'have to' when there is an obligation to do something

Context: The children look smart because they have to wear a uniform.. I have to collect the children from school at 3 '0'clock.

Concept Questions: 1. Do you have to wear a uniform at college? (no) 2. Why do the children wear a uniform (because they have to) 3. Do you have to speak English in class? (yes) Form:
'Have to' behaves quite irregularly in the past and the future depending on the context.
Often grouped with modal auxiliary verbs for convenience, but it is not a modal verb.
In the 'have' structure, have is a main verb.

Subject + auxiliary verb + have + infinitive (with to) the infinitive is to

Will have to is used to talk about the future or, have to, if an arrangement has already been made ie: we have to go, they are waiting for us...
We'll have to borrow the money we need
Pronunciation:
hæ v tə Have to = stress

A speaker of a particular language such as French, might have difficulty with certain sounds like /h /
(L1)
Appropriacy:
Can be used formally and informally, not to be confused with 'must'.

Anticipated problems:
The learner may confuse 'have to with 'must'. We use have to (not must) to say what someone is obliged to do.

Solutions:
CQ:
eg: (A) ' I broke my arm last week'... (B); did you have to go to hospital? (A): Yes, 'I have to go again next week'

Use drill exercise

Ref: English Grammar in Use; Third Edition, Raymond Murphy
Grammar Challenge; BBC Learning English Website (295 words)