I think the most difficult thing while learning any language is sentence structure...in english there r probably 24 kind of sentence structures..in grammar tenses r not at all difficult..i think the proper uses of preposition n conjuction in sentence should be study harder..

At the beginning to start speaking foreign language is a difficult thing. Just to speak. You can write well but as for a building correct sentences while speaking and expressing your thoughts is really hard. And of course Grammar and especially Tences are difficult.

myriads of synonims.

I major in German in the university...but i still want to impove my English....and now when i learned English ...i dont know what i should learn.....???Grammar is OK...i am confused...

The most difficult thing for me when I'm learning English is Grammar :(