la plus utilisée = 1 1 formal - It doesn't matter. 1 formal - It's not a problem. 2 informal - Don't worry (especially to begin the sentence) 2 informal - Never mind. 2 informal - it's not serious (not a serious problem) 1.. I arrived late for the meeting, but it does not matter. 1.. I burnt the food, but it does not matter because we can eat at a restaurant. 2.. Don't worry, the food I burnt was not expensive. 2.. Never mind (don't worry about it), the food I burnt was not expensive. 2.. Don't cry, it's not a serious problem.