I know we don't use "Pay to someone," but is there a reason? In terms of grammar, it seems correct.
Pay (transitive verb) + someone (direct object) Pay (intransitive verb) + to someone (prepositional phrase)
We say "Climb the mountain," and "Climb up the mountain" both.
Why don't we use "Pay someone," and "Pay to someone" both?
*I am asking this question because there may be something I don't know that may help improve my English.
Thank you in advance.