The affirmative form of to have: How and When to Use in English

Anna has got a son, with has (the form of to have that we use after she or a female name) To have, present simple tense + got, to stress their relationship. Note that got is not compulsory. Example: Betty has (got) a sister.

You can say Anna and Mike have got a son because the subject is Anna and Mike (= they), but you cannot use have after Anna.

Anna forgot a son means that Anna didn't remember her son, but here we are using the verb to have, not the verb to forget!

The guests have a nap at the hotel, with have To have, present simple tense following the subject the guests (=they). To have a nap means to have a short sleep. Example: after lunch, she always has a nap.

You can say the guest (=he/she) has a nap, but you cannot use has after the guests (=they).

A hat is a fashion item that you wear on your head, not a form of the verb to have! Example: Sherlock Holmes always wears a hat.

Dr Meyer has got grey hair. After Dr Meyer (=he), we use has got To have, present simple tense. We often use the verb to have to describe physical appearance. Example: Mary has got blonde hair.

You could say we have got grey hair, but you cannot use have after Dr Meyer.

You could say they have grey hair, but you cannot use have with a subject like Dr Meyer.

The full form that corresponds to the subject I is I have To have, present simple tense. Example: I have got a big family.

She/He/It has. To have, present simple tense This is the only irregular form of the verb to have. Examples: he has got a big house; the spider has long legs.

You have To have, present simple tense. Example: you have a beautiful smile.

Timmy has fun, with has To have, present simple tense, which we use after she/he/it (Timmy=he). To have fun means to enjoy oneself, to have a good time. Example: Laura has fun at the party.

I have got a good job. After I, use have To have, present simple tense. Since you are expressing possession, you can also add got. Example: I have got two cats. 

They have a bath in the morning. After they, use have To have, present simple tense, in this case to create the expression to have a bath. Example: when we need to relax, we have a bath.