4.14 'be' and 'have' as main verbs

If the verb is 'be', you do not use 'do'. You simply put the verb at the beginning of the clause, followed by the subject.

If the verb is 'have', you usually put 'do', 'does', or 'did' at the beginning of the clause, in front of the subject.

However, when you use 'have' in the sense of 'own' or 'possess', you do not need to use 'do', 'does', or 'did'. You can simply put 'have', 'has', or 'had' at the beginning of the clause. This is a slightly formal use.

If you use 'have got' or 'has got' in a 'yes/no'-question, you put 'have' or 'has' at the beginning of the clause, followed by the subject, followed by 'got'.

'Have got' and 'has got' are explained in paragraph 3.17.