[fegu]

To "the" or not to "the" before a name or noun.

[andruby]

I’ve heard lots of people with a Spanish background make mistakes against this. Iirc in Spanish you often should use it in front of a name.

[kevinmchugh]

It's probably the most common class of error for people who learn English as adults. There's lots of strange, hard to explain meaning encoded in which (if any) article a person chooses. "I dropped by the school today" and "I dropped by school today" are both valid and have slightly different implications