Instructional Video14:15
Oxford Online English

Present Perfect Verb Tense - English Grammar Lesson

12th - Higher Ed
In this lesson, you can learn about the present perfect verb tense in English.

Does your language have anything like the present perfect? Many languages don’t have a similar verb form. This can make it more difficult...
Instructional Video
Khan Academy

Khan Academy: Perfect Aspect

9th - 10th Standards
You use the perfect verb aspect to express when an action is completed, like 'I have done the dishes.'