domenica 13 novembre 2011

Past simple

Uses
  1. Events in the past that are now finished
  1. Situations in the past
  2. A series of actions in the past
USE 1: Past actions that are now finished
The first use of the Past Simple to express actions that happened at a specific time in the past. The actions can be short [1] or long [2].


Examples:
  • John cut his finger last week. [1]
  • I went to college 3 years ago. [2]
  • He ate the dinner 1 hour ago. [1]


  • Garfield slept well last night. [2]



USE 2: Situation in the past
Another use of this tense is talking about situations in the past.


Examples:
  • I lived in New York for 10 years (I don't live there anymore).

Before Now



USE 3: A series of actions in the past
The Past Simple can also be used with a few actions in the past happening one after another.


Example:
the grey monster was in love with the pink monster, he decided to give her some flowers but his friend hit him on his head considering him a betrayer.
























Time Expressions
Common time expressions in the Past Simple are:
  • yesterday
  • the other day
  • last night/week/time/month/year
  • the day before yesterday
  • ago

To be



Form regular verbs




irregular verbs

to be

Positive sentences
Negative sentences
I
was
Was not (wasn't)
you
were
Were not (weren't)
He/she/it
was
Was not (wasn't)
we
were
Were not (weren't)
they
were
Were not (weren't)
Question form
Was I?
Were you?
Was he/she/it?
Were we?
Were they?

Regular verbs
Positive senteces
we add -ED to the base form of the verb
Ex: work → worked
look → looked

when the verbs end in y:

  • if before the y there is a vowel we just add -ed. (play → played)
  • if before the y there is a consonant we change y in i before adding -ed. (study → studied)




Irregular verbs
Positive sentences
we take the form from the second column of the paradigm.


Base form
Past simple
Past participle
bring
brought
brought
meet
met
met
sing
sang
sung
take
took
taken



Negative and question forms (both regular and irregular verbs)

negative form
subject + did not (didn't) + base form verb

Ex: I did not go out last night.

questions
did + subject + base form verb?

Ex: Did you work yesterday?

















Present Perfect

Uses
    1) Actions which happened at an indefinite (unknown) time before now
    2) Actions in the past which have an effect on the present moment
    3) Actions which began in the past and continue in the present




USE 1: Indefinite time before now
Use the Present Perfect to talk about actions that happened at some point in the past. It does not matter when they happened.
Examples:
  • I have passed my exam.
  • He has been to England.


USE 2: Effect on the present moment
We also use this tense when an activity has an effect on the present moment.
Examples:
  • He has lost his keys.
            (so he can't open the door now)
  • I haven't eaten dinner yet.
          (so I'm hungry)




  • He has had a car accident.
              (that's why he is in the hospital)


USE 3: Continuation in the present
We often use the Present Perfect when we want to emphasize that an event continues in the present.
For this use in Italian we don't use “passato prossimo” but “presente” so pay attention when you translate from Italian into English!
Example:
  • Mary has worked as a teacher for over 25 years.
    25 years ago now
(Mary lavora come insegnante da più di 25 anni)
teacher's note: Presen Perfect can be considered the tense that expresses experiences in your life (when you are alive) without an exact time reference.


Common time expressions in the Present Perfect are:
Since and For are very common time expressions used with the Present Perfect.
We use For with a period of time, for example:
  • I have lived here for 20 years.
When talking about a starting point, we use Since, for example:
  • I have lived here since 1960.
  • already
  • yet
  • just
  • never
  • ever
  • so far

Form
To form a sentence in the Present Perfect, you need:
present simple of TO HAVE + PAST PARTICIPLE
1. to Have
Person
Singular
Plural
First
I have
We have
Second
You have
You have
Third
He/she/it has
They have
2. The Past Participle
The past participle can be either regular or irregular.
  • Regular verbs
    they are formed by adding -ed to the verb:
Verb
Past Participle
talk
talked
explain
explained

  • Irregular verbs
    we take the form from the third column of the paradigm.

Base form
Past simple
Past participle
bring
brought
brought
meet
met
met
sing
sang
sung
take
took
taken

Positive form
Subject + have/has + past participle

Negative form
Subject + have not/ has not (haven't / hasn't) + past participle

Question form
have/has + subject + past participle ?

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