martes, 9 de noviembre de 2010

PRESENT TENSES REVIEW

PRESENT SIMPLE
1.To talk about habitual or usual actions.
2.For facts and generalizations.
3.To talk about events in the near future.
Ex: I play football on Saturday.

Forms:

Affirmative form

I/You/We/They + verb (infinitive)
Ex: I play football.
He/She/It + verb (infinitive) –s
Ex: He plays football
Negative form
I/You/We/They + do not + verb (infinitive)
Ex: You don’t play football.
He/She/It + does not + verb (infinitive)
Ex: She doesn’t play football.
Interrogative form
Do + I/You/We/They + verb (infinitive) + ?
Ex: Do you play football?
Does + He/She/It + verb (infinitive) +  ?
Ex: Does she plays football?


PRESENT CONTINUOUS
1)To indicate that something is happening at the moment
2)To talk about an action that is in progress, but we may not be doing this action at the moment.
3)To express that something will happen
Ex: I’m reading book now.
Forms:

Affirmative form

I + am + verb (‘m) -in
Ex:  I’m reading book.
You/We/They + are (‘re)+ verb -ing
Ex: They’re reading book.
He/She/It + is (‘s) + verb –ing
Ex: She’s reading book.
Negative form
 I + am not (‘m not) + verb-ing
Ex: I’m not reading book.
You/We/They + are not (aren’t) + verb-ing
Ex: They aren’t reading book.
He/She/It + is not (isn’t) + verb-ing
Ex: She isn’t reading book.
Interrogative form
Am + I + verb-ing + complements?
Ex: Am I reading book?
Are + You/We/They + verb-ing ?
Ex: Are you reading book?
Is +  He/She/It + verb-ing ?
Ex: Is he reading book?
PRESENT PERFECT SIMPLE
1)To express a present situation that began in the past.
2)To talk about something which happenes in the past that caused a present situation.
3)
To talk about past experiences, without saying exactly when they happened.
Ex: I’ve studied English since 1999.
Forms:
Affirmative form
I/You/We/They + have (‘ve) + verb (past participle)
Ex: I’ve studied English since 1999.
He/She/It + has (‘s) + verb (past participle)
Ex: She’s studied English since 1999.
Negative form
 I/You/We/They + have not (haven’t) + verb (past participle)
Ex: They haven’t studied English since 1999.
He/She/It + has not (hasn’t) + verb (past participle)
Ex: He hasn’t studied English since 1999.
Interrogative form
Have + I/You/We/They + verb (past participle) ?
Ex: Have you studied English since 1999?
Has + He/She/It + verb (past participle) ?
Ex: Has she studied English since 1999?

No hay comentarios:

Publicar un comentario