Why is used ( has ) instead of ( have )
I have this phrase, that I practicing use of ( has ) and ( have ). Why is used ( has ) in the phrase below, instead of the use ( have ) ?

My father has just arrived

Question

Why is used ( has ) instead of ( have )
I have this phrase, that I practicing use of ( has ) and ( have ). Why is used ( has ) in the phrase below, instead of the use ( have ) ?

My father has just arrived

Answer

The third person (he she it) of the verb 'have' is 'has'

I have
You have
He has

Answer

and plural is 'have.' e.g.

my friends have arrived