be to do with sb/sth
idiom.idiom. to be connected to or about a specific person or thing.
idiom. to have a connection with or relate to a subject; used to describe the nature of a relationship or the cause of a situation.
The problem is to do with the computer's battery.
I think her bad mood today is to do with the argument she had this morning.
The recent decline in local biodiversity is largely to do with the destruction of natural habitats for urban expansion.
often used with 'nothing', 'something', or 'a lot' to show the degree of connection.
this is a very common spoken alternative to 'relate to' or 'be about'; it is useful for explaining causes without using formal academic language.
It is to do about the money.It is to do with the money.the preposition 'with' is fixed in this expression; do not replace it with 'about'.