This document discusses the perfect tense in English grammar. It explains that the perfect tense is a combination of the past and present tenses. It provides examples of how to form the positive, negative, and interrogative forms of the perfect tense using the auxiliary verbs have and has along with the past participle of the main verb. Examples are given such as "I have bought a car" and "What have you bought today?".

1. Perfect Tense
It´s a combination of past and present
I have just bought a car
We form the perfect tense with
Suj + have/ has + past participle + complement
 I have bought a car
 Helen has bought a car
Have - Has (3er person)
 I have
 You
have
 we have
 you
have
 they
have
He Has
She Has
It Has
Perfect Tense
Subject + haven´t /hasn´t + past participle +
complementI haven´t bought a car
He hasnt´t bought a car
Questions
Wh + Have / Has + subject +
past participle +
Complement?
What have you bought
today?
What has he bought today?
Have + Has/ Subject + past participle +
complement?
Have you bought a car?
Has he bought a car?
Osmary García
C.I 25.720.316
Ingeniería Agronómica