To have a meal/food or drink, a bath/a lesson, etc. (= «take»); To give a party (= «entertain» guests); to have difficulties/trouble (= «encounter»). We have lunch at one; They are having a party tomorrow; Did you have trouble with Customs? I hope you’ll have a good holiday. We are having breakfast early tomorrow, (futuro próximo); She is having twenty people to dinner next Monday, (futuro próximo); I can’t answer the telephone; I am having a bath, (presente); How many English lessons do you have a week? – I have six; You have coffee at eleven, don’t you? (hábito); Ann has breakfast in bed, but Mary doesn’t, (hábito); Will you have some tea/coffee etc.? (Esto es una invitación. Puede también omitirse «Will you» y decirse: «Have some tea etc.); Did you have a good time at the theatre? (Did you enjoy yourself?); Have a good time! (Enjoy yourself!); I am having a wonderful holiday; I didn’t have a very good journey; Do you have earthquakes in your country? – Yes, but we don’t have them very often.
[«have» tambien puede usarse para significar: «take» (a meal / food or drink, a bath / a lesson etc.); «give» (a party), «entertain» (guests); «encounter» (difficulties / trouble); «experience,» «enjoy,» normalmente con un adjetivo, e.g. «good». «have» usado como se indica arriba obedece las reglas que se aplican a los verbos ordinarios: nunca va seguido de «got«; su negativa y su interrogativa se forman con do / did; y puede usarse en los tiempos continuos.]
A Practical English Grammar (A.J. Thomson & A.V. Martinet) 