Present perfect

                                                             Presente Perfecto:

Para formar el presente perfecto, se usa el verbo auxiliar “to have” en el presente y el participio pasado del verbo. Para verbos regulares, el participio pasado es la forma simple del pasado

Sujeto	Verbo auxiliar	Forma Corta	Participio Pasado
I, you, we, they	have	I’ve, you’ve, we’ve, they’ve	talked, learned, traveled…
he, she, it	has	he’s, she’s, it’s	talked, learned, traveled…

• Se usa el presente perfecto para describir una experiencia. No lo usamos para acciones específicas.

Ejemplos:

                I have never flown in a plane. 

                He has worked in many different museums. 

                We have been to Río de Janeiro.  

•  Se usa para los exitosos.

Ejemplos:

                Our football team has won the championship three times.

                Dan has finished writing his first novel.

•  Se utiliza el presente perfecto para hablar sobre acciones en diferentes momentos en el pasado. El uso del presente perfecto en estos casos indica que son posibles más acciones en el futuro.

Examples:

                We have spoken several times, but we still can’t reach an agreement. 

                Our team has played 4 games so far this year.

                I love New York! I have been there 5 times already and I can’t wait to go back.

FORM AFFIRMATIVE:

Sujeto + verbo auxiliar (to have) + participio pasado…

 Examples:       
                I have [I’ve] talked to Peter.

                She has [She’s] gone to work. 

                We have [We’ve] been to London. 

                They have [They’ve] learned English.

FORM NEGATIVE:

Sujeto + verbo auxiliar (to have) + “not” + participio pasado…

   Examples:         
                I haven’t talked to Peter. 

                She hasn’t gone to work. 

                We haven’t been to London. 

                   They haven’t learned English. 

FORM INTERROGATIVE:

Verbo auxiliar (to have) + sujeto + participio pasado…?

Examples:

                Have you talked to Peter? 

                Has she gone to work?

                Have you been to London? 

                Have they learned English? 
                                                              


                                            Signal Words:
                Yet, already, so far this..., since, for, just, never, ever. 

Group No. 1
Simple present	Simple past	Past participle
Be	were/was	Been
Beat	Beat	Beaten
Bite	Bit	Bit
Blow	Blew	Blown
Break	Broke	Broken
Choose	Chose	Chossen
Do	Did	Done
Draw	Drew	Drawn
Drive	Drove	Driven
Eat	Ate	Eaten
Fall	Fell	Fallen
Fly	Flew	Flown
Forget	Forgot	Forgotten
Get	Got	Gotten
Give	Gave	Given
Go	Went	Gone
Hide	Hid	Hidden
Know	Knew	knowwn
Liw	Lay	Lain
Rise	Rose	Risen
Ride	Rode	Ridden
See	Saw	Seen
Snow	snowed	Snown
Steal	Stole	Stolen
Speak	Spoke	Spoken
Take	Tore	Torn
Throw	Threw	Thrown
Wake	Woke	Woken
Wear	Wore	Worn
Writen	wroten	Written

                                                                                                                                                                                             

Group No.  2 I-A-U
Simple Present	Simple Past	Past Participle
Begin	Began	Begun
Drink	Drank	Drunk
Ring	Rang	Rung
Sing	Sang	Sung
Swin	Swan	Swuun

                                                                       

                                                   

Group No. 3
Simple Present	Simple Past	Past Participle
Cost	Cost	Cost
Cut	Cut	Cut
Hit	hit	Hit
Hurt	hurt	Hurt
Let	let	Let
Put	Put	Put
Quit	Quit	Quit
Read	Read	Read

Group No. 4
Simple Present	Simple Past	Past Participle
Bring	Brought	Brought
Bulid	Built	Bulit
Buy	Bought	Bought
Catch	Caught	Caught
Feel	Felt	Felt
Fight	Fought	Fought
Find	Found	Found
Hang	Hung	Hung
Have	Had	Had
Hear	Herad	Herad
Hold	Held	Held
Keep	Kept	Kept
Leave	Left	Left
Lend	Lent	Lent
Light	Lit	Lit
Lose	Lost	Lost
Make	Made	Made
Mean	Meant	Meant
Meet	Met	Met
Pay	Paid	Paid
Say	Said	Said
Sell	Sold	Sold
Send	Sent	Sent
Shine	Shone	Shone
Shoot	Shot	Shot
Sit	Sat	Sat
Sleep	Slept	Slept
Spend	Spend	Spend
Teache	Taught	Taught
Tell	Told	Told
Think	Though	Though
Understand	Understood	Understood
Win	Won	Won

                                   

Group No. 5
Simple Present	Simple Past	Past Participle
Become	Became	become
Come	Came	come
Run	Ran	Run

            

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