thats really good question! I want to find out too.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Mister MicawberJohn was my boss and is my close friend. Fine, but no comma.This Brit would use a comma there.
fivejedjonThis Brit would use a comma there.Hmmm. American practice is no comma with and unless a new subject appears explicitly: John was my boss, and he is my close friend.