Here's why:
* Have is a helping verb (auxiliary verb).
* Got is the past participle of the verb "get."
Together, they form a verb phrase that expresses possession, obligation, or a state of being.
For example:
* I have got a new car. (possession)
* You have got to finish your homework. (obligation)
* They have got a lot of money. (state of being)
It's important to note that in British English, "have got" is often used interchangeably with "have" as a simple present tense verb. However, in American English, it's more common to use "have" in most cases.