After hearing the bad news, it took me a while to calm down.
A: I can't believe I missed my flight! B: Just calm down, you'll figure something out.
When I feel stressed about exams, I usually take a walk to help myself calm down.
Common mistake
✗You need to calm down yourself.
✓You need to calm down.
When YOU settle, 'calm down' takes no object — 'calm down' alone is far more natural.
Tell it apart
Take a breath and calm down.
stop being upset
Take a breath and cool off.
let your anger fade
Use this when someone is feeling strong emotions and needs to relax or control themselves.This sense is about your own feelings, not about helping someone else.