to find something very difficult, to have a hard time with something (the subject and object roles are inverted relative to the English phrasing, like with gustar)
Cuando estoy de pie, me cuesta respirar. ― When I'm standing, I find it hard to breathe.
Le cuesta mucho pronunciar esa palabra. ― He has a really hard time pronouncing that word.
Who are we?
We are a Spanish language school that offers traditional, grammar-intensive live Spanish classes.