have to do with sb/sth
idiom.idiom. to be connected to or about someone or something.
idiom. to be associated with, related to, or concerned with a specific subject or person; often used to clarify or deny a connection.
This problem has to do with the new software.
I don't think his bad mood has anything to do with you; he's just tired.
The investigation into the company's finances may have to do with several suspicious transactions discovered during the annual audit.
often used with 'something', 'nothing', or 'anything' to show the strength of the connection.
help students see this as a fixed unit meaning 'be related to' rather than a literal use of the verb 'have' or 'do'; it is very common in negative constructions like 'nothing to do with'.
It has to do about the weather.It has to do with the weather.the phrase always uses the preposition 'with' to show the connection, never 'about'.