Maria Maslova
More ideas from Maria
Learn English as you read and listen to news and feature stories about everyday grammar, education and study in the U.S. Our stories are written at the intermediate and upper-beginner level and are read one-third slower than regular VOA English.

Perfect progressive tenses generally express how long an action has been happening. The Everyday Grammar team has some tips to make these tricky verb tenses a little bit easier to understand.