Aran & Epica's World

Present continuous and present perfect continuous Incorrect: I am working for the last two hours. Correct: I have been working for the last two hours. Incorrect: He is working in this office for three years now. Correct: He has been working in this office for three years now. Incorrect: She is working since morning. Correct: She has been working since morning. Here the error lies in using the present continuous instead of present perfect continuous. The present continuous tense is used to talk about an action that is going on at the time of speaking. Here the emphasis is simply on the continuity of the action. The present perfect continuous is used to talk about an action which started...