Don't interfere in my affairs.
He has no right to interfere in our family affairs.
Bob told Jane not to interfere in his personal affairs.
No country should interfere in another country's internal affairs.
Don't interfere in other people's affairs.
You have no right to interfere in other people's affairs.
They should not intervene in the internal affairs of another country.
He wouldn't let anybody interfere with his private affairs.
The big nations should not interfere with the smaller nations.
It is not my part to meddle in your affairs.