The Verb "Have" Chart
In all the simple tenses, the verb "have" can be used as the main verb.
In all the perfect tenses the verb "have" is used as an auxiliary verb.
When the verb "have" is used as the main verb, it is usually used only in the simple form (static verbs).
The verb "have" can be used in the progressive tense, only in the present and future.
The verb have can not be used in the past progressive tenses.