Sort:  

you seem to like to leave out the "uncertain singular article"; the "a". I assume you don't have that in your language. Ie:

English is not my primary language, so few mistakes in long article is to be expected

should be "English is not my primary language, so a few mistakes in a long article is to be expected."

Apart from you sometimes letting that article slip, I would not be able to tell that you are not a native english speaker ;)

German and Croat dude arguing about english grammar LOL I think both examples are correct.