The document discusses the present perfect tense in English. It notes that the auxiliary verb is "have/has" and the main verb is in the past participle form. It provides examples of regular and irregular verbs in this form. It then outlines four common uses of the present perfect tense: 1) to talk about an event during a period of time that is still continuing, 2) to say how long a situation has existed, 3) to talk about an event that has a strong connection to the present, and 4) to talk about an experience at an unspecified time in the past. It concludes with examples of positive, negative, and interrogative sentences using the present perfect tense.

1. Present Perfect Tense
1) The auxiliary verb of the Perfect Tenses is “to have”. In the Present Perfect is (have – has).
2) The main verb comes in Past Participle form. (Terminaciones –ado –ido del verbo en español)
a. (Regular verbs: -ed endig) work – worked (trabajar - trabajado)
b. (Irregular verbs: Every verb has its form) eat – eaten (comer - comido)
3) To make a Present Perfect statement, we simply follow the pattern:
Subject + have/has + main verb in Past Participle + complement
We use the present perfect:
1) To talk about an event during a period of time that is still continuing.
Example: I have lived in Colombia all my life. = I’ve lived in Colombia all my life. (Yo he vivido en Colombia toda mi vida)
2) To say how long a situation has existed, often with for (por), since (desde), and how long (cuánto
tiempo).
Examples: I’ve been at this school for five years. = (Yo he estado en esta escuela por cinco años)
I’ve been at this school since 2015. = (Yo he estado en esta escuela desde el 2015)
How long have you had that jacket? = (¿Cuánto tiempo has tenido esa chaqueta?)
3) To talk about an event that has a strong connection with the present, often with just (justo),
already (ya), and yet (aun/todavía - ya).
Examples: The sun has just come out. = (El sol justo ha salido)
Tom has already answered the questions. = (Tom ya ha contestado las preguntas)
I haven’t finished yet. = (No he terminado aun)
Have you done your homework yet? = (¿Ya has hecho tu tarea?)
4) To talk about an experience at an unspecified time in the past, often with ever (alguna vez) or
never (nunca).
Examples: I’ve never been to France. = (Nunca he estado en Francia)
Have you ever eaten Japanese food? = (¿Alguna vez has comido comida Japonesa?)

2. Examples:
Positive: I have done my homework.
Negative: I haven’t done my homework.
Interrogative: Have you done your homework?
Yes, I have.
No, I haven’t.
Wh-question: How long have you lived here?
I have lived here for ten year.
Positive: Amy has been to the United States.
Negative: Amy hasn’t been to the United States.
Interrogative: Has Amy been to the United States?
Yes, she has.
No, she hasn’t.
Wh-question: Why has Amy gone to the United States?
She’s gone to the United States because she got a job there.
Henry Aguirre