be to do with (something)

be to do with (something)

To be related to something. I overheard you girls talking and couldn't help but wonder what prom dresses are to do with the science project you're supposedly working on.

be/have to do with somebody/something

be connected or concerned with somebody/something: ‘What do you want to see me about?’ ‘It’s to do with the letter you sent.’ ♢ I’m not sure what he does for a living but I know it’s something to do with computers.

See also: have, somebody, something