"baubau, one thing I have learned is not to argue fine points of grammar with those who learned English as a second language; you actually studied what I took for granted."
And I did study English.
My two obstacles to languages or anything I study/read are the filtering out of too much information and my poor retention span. Especially memory has been a real handicap ever since I was young boy.
Funny anecdote happened to me last week. Someone overheard me speak in Spanish and said he didn't know I spoke Spanish so well. I told him I'm fluent in four languages, to which he remarked, "Yes, you do speak many languages, but none of them well." LOL! And he was right.
Ciao!
If I am not too nosey, may I ask what your other 2 languages are?
***And he was right. ***
Well, he certainly was wrong about your grasp of English. And probably the other three languages as well.