Present Perfect__ grammar aspects

Please, review the following links for grammar explanations on present perfect.

1. perfect-english-grammar.com/present-perfect-use.html
2. learnenglish.britishcouncil.org/en/english-grammar/verbs/present-tense/present-perfect
3. englishpage.com/verbpage/presentperfect.html
4. esl.fis.edu/grammar/rules/presperf.htm

Time to exercise!   Please, visit the following websites and apply what you learned.

1. englisch-hilfen.de/en/grammar/pres_perf.htm
2. learnenglish.britishcouncil.org/en/grammar-exercises/present-perfect
3. englishclub.com/grammar/verb-tenses_present-perfect.htm
4. better-english.com/easier/forsince.htm
5. ego4u.com/en/cram-up/grammar/present-perfect-simple
6. perfect-english-grammar.com/grammar-exercises.html
7. eclecticenglish.com/grammar/PresentPerfect1D.html
8. web2.uvcs.uvic.ca/elc/studyzone/410/grammar/pperf2.htm

Check out this video!