No, “have” is not a preposition. It is a verb.
Function of “Have” as a Verb:
- Indicating Possession or Ownership
- I have a restaurant in downtown Chicago.
- She has a new POS system.
- Expressing an Experience or Action
- We had dinner at the new restaurant.
- They have a meeting scheduled for tomorrow.
- As an Auxiliary (Helping) Verb (Used in Perfect Tenses)
- She has finished setting up the new menu.
- They had already placed the order when we arrived.
Why “Have” Is Not a Preposition
- Prepositions (e.g., in, on, under, about) show relationships between words.
- “Have” does not function this way; it is a verb that expresses possession, experience, or action.
Thus, “have” is a verb, not a preposition.