The Present Perfect tense!!! What is it used for?????

The present perfect is one of the most used tenses in English. Like in every tense in english grammar rules have to be followed.

Here are some links with the information:

• Form, uses, exercises and related topics
• Examples, uses, structure and QUIZ!!! Don't worry!!!!
• List of irregular verbs (Simple present, Simple past, Past Participle)
• Test on present perfect. Let's see how you do!!!

And now a very popular song from a very popular group using present perfect!!