What are your most difficult grammar issues? Phrases and Clauses. English Grammar Lessons for Adults. There is often very little difference between the present perfect simple and the present perfect continuous.
In many cases, both are equally acceptable. I've lived here for 10 years and she has been living here for 12 years. They've been working here for a long time and Andy has worked here for even longer. When we want to emphasize the action, we use the continuous form. Prepositions. Explanations, Examples, Exercises in English grammar for ESL students and teachers.