This is how decline is used in my part of the world. Could you please tell me if the use sounds fully natural to your native ears?

  1. I offered her a lift but she declined.
  2. He invited me for lunch but I declined.
  3. I asked him for a little loan but he declined.
  4. A- Will you come to me birthday party? B- Sorry, I must decline. I'm flying tonight.




Good for my ears.