Question

1. She doesn't eat breakfast every day.
[She eats breakfast sometimes, but she skips breakfast sometimes. In this case, we can use this expressions, can't we?]

2. She doesn't eat breakfast at all every day.
[If we put 'at all', she doesn't eat breakfast any day. Right?]

Answer 1

1. Yes, you are right.

2. Yes, right again -- and because she doesn't eat breakfast at all, you don't need to add "every day." The "at all" takes care of that!

Answer 2

Okay, thank you.