Well, when you say "I take some books" it means you grab with your hands. It's more possesive. But, when you say "She took me" (or "she takes me" in present, whatever) it means she escort to somewhere. Like a company.

Great question! You can say... I have already taken my medicine. "take" or "takes" is the present tense "took" is the past tense "have taken" is the present perfect tense. Check out this webpage on verb tenses... http://www.verbix.com/webverbix/English/take.html I would love to help you to improve your English. Thank you, Shawn