Hi Kellen, A: "I've been learning Spanish since December." B: "I'm learning Spanish since december" Sentence A is correct. You started learning in the past (since December), and it has been a few months. You are still learning it now, so present perfect continuous tense is required to emphasise the fact that the process is still ongoing as you write (i.e have been learning). Sentence B is incorrect as present continuous tense does not provide an indication that an action originated in the past. Eg The blind man is crossing the road. It does not emphasise on whether he started putting his feet onto the road in the past. You just see him crossing now. Hope this helps. Cheers, Lance

First one is correct, the second one is not - as far as I know. You are allowed to use "since" with a present perfect tense, unless it's a cause clause, for example "I don't eat candies, since I am allergic to sugar". where you can swap "since" with "because" or sth like that. It's more formal.

Only the first sentence is grammatically correct. We would always say - "I've been learning Spanish since December." :)