please be advised that not all of the patterns offered here are automatically available in English - it always depends on which language(s) the individual author is fluent in.
Usually, a good indication is the language of the title and description text itself - if those are not in English then the pattern most likely isn't either. Also, on the right side next to the pictures (where the price is listed), there are little flags displayed for the available languages.
If you have now selected in the settings to view the website in English and have patterns displayed in English as well, it should now only show you those patterns available - the other patterns should have disappeared from your view.
If the pattern is available in English, you will be able to download them in English. I think the pattern you are referring doesn't have the English version of it.