1. 1 2 3
subject + have / has + 3
eat ate eaten
Affirmative Negative Interrogative
I have eaten I haven't eaten Have I eaten ?
You have eaten You haven't eaten Have you eaten ?
He/She/It has eaten He/She/It hasn't eaten Has he/she/it eaten ?
We have eaten We haven't eaten Have we eaten ?
You have eaten You haven't eaten Have you eaten ?
They have eaten They haven't eaten Have they eaten ?
Affirmative subject + have / has + 3
I have eaten 3 apples this morning – He tomado 3 manzanas esta mañana
He has eaten a lot today - El ha comido mucho hoy
Negative subject + haven't / hasn't + 3
I haven't eaten today - No he comido hoy
He hasn't eaten today - El no ha comido hoy
Interrogative Have / Has + subject + 3 ?
Have you eaten today? - ¿Has comido hoy?
Has he eaten today? - ¿Ha comido él hoy?
usos del presente perfecto simple
Por regla general, se lo utiliza para describir acciones que empezaron en el pasado
y que aún no han finalizado o que guardan alguna relación con el presente.
Con el adverbio just: acciones que acaban de ocurrir.
The President has just arrived from the US. El Presidente acaba de llegar desde EEUU.
They both have just left for Bogota. Ambos acaban de partir para Bogotá.
Con las preposiciones for y since.
We have lived in Italy for three years. Vivimos en Italia desde hace tres años.
I haven't heard from her since 2008. ¡¡No he tenido noticias suyas desde 2008!!
Con los adverbios yet y already.
They haven't taken the Basic Exam yet. No han hecho el Examen Básico aún.
I have already taken the Intermediate Exam. Ya he hecho el Examen Intermedio.
Con el grado superlativo de un adjetivo.
Roberto is the funniest friend I’ve ever had.
Con las expresiones: It's the first, It's the second, etc.
It's the first time I have flown IBERIA. Es la primera vez que vuelo por IBERIA.
It's the second time she has had lunch today. Es la segunda vez que almuerza hoy.

2. expresiones usuales del presente perfecto simple
since /sɪns/ - for /fɔ:(r)/ - just /dʒʌst/ - lately /'leɪtli/ - yet /jet/ - how long?
already /ɔ:l'redi/ - never /'nevə(r)/ - ever /'evə(r)/ - recently /'ri:sn̩tli/
We haven’t spoken to each other since last summer.
She has lived here since March 2009.
We haven’t spoken to each other for 7 months.
She has lived here for 2 years.
I’ve just met your husband. He looks very nice!
She has just left.
I haven’t read anything interesting lately.
Have you seen John lately?
She hasn’t received my letter yet.
Has he made the homework yet?
No, thanks! We have already eaten.
I have already been to Egypt.
You have never worked more than 8 hours a day.
I have never learnt Japanese but I would love to.
Have you ever failed a French exam?
It’s the safest city I’ve ever been to.
Have you talked to him recently?
They have died recently.
How long have they lived in Scotland?
How long have you known Peter?
Difference between these two sentences:
She has gone to Paris recently.
She has been to Paris recently.