Are you having lunch?
Have a drink, a shower, etc.
auxiliary verb for present perfect and perfect forms
obligation
Annotations:
do we really have to go?
have + object + past participle
Annotations:
you ask or pay another person to do something for you
I'm having my bike repaired
we're going to have the kitchen repainted next week
Where do you have your hair cut?
have got
possesion (= have)
NOT "had got"
have got to (obligation)
Annotations:
Used to specific obligation
I have to wear a suit to work
vs.
I0ve to make a phone call