Present Tense:
* First Person Singular: I have
* Second Person Singular: You have
* Third Person Singular: He/She/It has
* First Person Plural: We have
* Second Person Plural: You have
* Third Person Plural: They have
Past Tense:
* All Persons: had
Present Participle:
* having
Past Participle:
* had
Other Forms:
* Contracted Forms: I've, you've, he's, she's, it's, we've, you've, they've
* Negative Forms: I haven't, you haven't, he hasn't, she hasn't, it hasn't, we haven't, you haven't, they haven't
* Question Forms: Have I?, Have you?, Has he/she/it?, Have we?, Have you?, Have they?
It's important to note that "has" is specifically used with the third person singular pronoun (he, she, it). For all other persons and plural forms, the verb "have" is used.