PRESENT PERFECT

Oh my god! We have to study the present perfect now! But don't worry, it is not as difficult as you think. Here you can find some links to practise this tense at home:

IRREGULAR VERBS:
http://www.quia.com/cb/8111.html
http://www.bradleys-english-school.com/online/jigword/jigpast1.html
http://www.manythings.org/wbg/verbs_past1-sw.html
http://www.manythings.org/wbg/verbs_past1-mw.html


EVER/NEVER:
http://menuaingles.blogspot.com/2007/09/present-perfect-con-ever.html
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-4147.php

FOR / SINCE:
http://www.eclecticenglish.com/grammar/PresentPerfect1D.html

HELP!! I DON'T KNOW THE VERB "TO HAVE"!!
Positive form:
http://www.anglomaniacy.pl/grammarHelpers7.htm
Positive short form:
http://www.anglomaniacy.pl/grammarHelpers8.htm
Negative form:
http://www.anglomaniacy.pl/grammarHelpers9.htm
Negative short form:
http://www.anglomaniacy.pl/grammarHelpers10.htm
Questions:
http://www.anglomaniacy.pl/grammarHelpers11.htm
Short answers:
http://www.anglomaniacy.pl/grammarHelpers12.htm