Stop to do or doing
We use the –ing form after stop to indicate that an action or event is no longer continuing:
It’s stopped raining. Let’s go for a walk. (It was raining, but not any more.)
We’ve stopped using plastic bags in supermarkets. We take our own bag with us now when we go shopping.
*Parar de hacer algo
We use the to-infinitive after stop to indicate that someone stops doing something in order to do something else:
On the way to Edinburgh, we stopped to look at an old castle. (We were travelling, then we stopped our journey in order to look at the castle.)
We stopped to have something to eat.