The Present Perfect form - Year 3

Come costruiamo il Present Perfect Tense?

La struttura del present perfect tense è:

SOGGETTO	+	VERBO AUSIL. AVERE	+	PARTICIPIO PASSATO DEL     VERBO PRINCIPALE

Esempi:

	subject	auxiliary verb		main verb
+	I	have		seen	ET.
+	You	have		eaten	mine.
-	She	has	not	been	to Rome.
-	We	have	not	played	football.
?	Have	you		finished?
?	Have	they		done	it?

Contrazioni con il present perfect:

Quando si usa il present perfect tense di solito si contrae il soggetto ed il verbo ausiliare. 

I have	I've
You have	You've
He has She has It has John has The car has	He's She's It's John's The car's
We have	We've
They have	They've

Esempi:

• I've finished my work.
• John's seen ET.
• They've gone home.

Il participio passato:

• Se il verbo è regolare, aggiungi un -ed alla forma base.   -   esempio: play - played.     Attenzione alle regole di sscrittura, le stesse usate per il simple past: study - studied, stop - stopped, love - loved.
• Se il verbo è irregolare, devi impararlo a memoria!  -  esempio: go - gone ; be - been...

Practice:

http://www.englishclub.com/grammar/verb-tenses_present-perfect_quiz.htm
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?03
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?04
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?05
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?07
http://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises
http://www.ego4u.com/en/cram-up/tests/present-perfect-simple-1
http://www.englisch-hilfen.de/en/exercises/structures/past_participle.htm
http://www.englisch-hilfen.de/en/exercises/tenses/present_perfect_statements.htm
http://www.englisch-hilfen.de/en/exercises/questions/present_perfect.htm
http://www.englisch-hilfen.de/en/exercises/tenses/present_perfect_negation.htm
http://web2.uvcs.uvic.ca/courses/elc/studyzone/330/grammar/prperf2.htm
http://baladre.info/english/sedaviwebfront/presperfinter.htm
http://www.englishgrammarsecrets.com/presentperfectorpastsimple/exercise4.swf
http://raud.dugal.pagesperso-orange.fr/intermediate/Present%20Perfect/presentperfect2.htm
http://www.english-grammar-lessons.com/presentperfect/exercise1.html
http://www.perfect-english-grammar.com/present-perfect-exercise-1.html
http://www.englishexercises.org/makeagame/viewgame.asp?id=1484
http://www.englishexercises.org/makeagame/viewgame.asp?id=2998
http://www.perfect-english-grammar.com/present-perfect-exercise-2.html
http://www.english-area.com/paginas/presentperfect.htm
http://personales.ya.com/mjandres/archivos/presentperfect1.htm
http://www.esl-classroom.com/grammar/presperf1.html
http://www.perfect-english-grammar.com/present-perfect-exercise-3.html

(where are the errors in this picture?)