They have made movies since they finished college When they graduated from college, Lisa and Amy started making movies together. They still make movies. 1) They have made five movies since they finished college. (the result is given 5 movies .) 2) They have been making movies since they finished college. (the emphasis on "have been making " without stopping on schedule and now They also doing the same) I can't say : They have made movies since they finished college. Because by the terms - They still make movies. action not finished, the result is not given. If I change the conditions by they broke up would I can say ? They have made movies since they finished college. ( Now they broke up. They don't make movies anymore. ) Thanks for help!