to start with
To start with (phrase) means used to introduce the first item in a series of points, criticisms or reasons. Example: “To start with, nobody told us the venue had changed.”
How to use to start with
Learner’s notesIn plain EnglishEither "first of all" or "at the beginning".
Neutral to informal. As a list marker it often signals that a complaint is being built up point by point.
Put a comma after it when it opens a sentence, and none when it closes one.
Fill the gap
Can you complete this real example?
_____, nobody told us the venue had changed.