Way 1 · best default
Don't worry about it
Kind and clear: it's fine and they can stop feeling bad. Works for small and medium problems.
Examples
Don't worry about it. I wasn't waiting long.
"Sorry I forgot your book." "Don't worry about it, bring it next week."
In a conversation
A: I'm so sorry I missed your birthday.
B: Don't worry about it. Let's get dinner this week.
Common mistake
Not: Never mind.
Say: Don't worry about it.
"Never mind" is OK for a tiny problem, but to a real apology it can sound cold, like you've given up on them.
