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Form: past simple

AffirmativeA declarative sentence indicating "yes"; also called a positive sentence. E.g.: John likes squash a lot.

subjectThe person or thing that performs the action of a verb or that is described by a verb. E.g.: Andy has never been to Brunei. ("Andy") verbA part of speech that expresses an action or a state. E.g.: John seldom plays tennis. (past tenseA grammatical category that is marked by verb inflection. To express when an event or action happens in time or when a state exists, we use tenses.)  
I
You
He/she/it
We
You
They
arrived yesterday.

In the case of regular verbs, the past simple is formed by adding -ed to the base form of the verb for all persons. Note the changes in spelling:

  • look, looked
  • stay, stayed
  • arrive, arrived (we only add -d if the verb ends in -e)
  • try, tried (a final -y changes to -i- after a consonant)
  • stop, stopped (we double the final consonant if the verb finishes in consonant-vowel-consonant)

A number of verbs have irregular past forms. A few examples are: 

  • buy, bought
  • fly, flew
  • hit, hit
  • shine, shone
  • swim, swam

See the Appendix for a list of the most common irregular verbs in English.

NegativeA declarative sentence indicating "no". E.g.: Tim has no friends.

In the negative, we use the auxiliaryA helping verb used with main verbs to express mood, voice and tense. E.g.: I can't stand when I am disturbed. ("can", "am") did + not, followed by the infinitive:

subject auxiliary not verb (simple infinitive)  
I
You
He/she/it
We
You They
did not arrive in time.

The contracted form didn't is often used instead of did not in spoken and in informalBelonging to colloquial or everyday speech E.g.: I want Mr Smith to call the guy that the committee has decided on. written language.

InterrogativeThe sentence type used to express a direct question. E.g.: What are you doing?

In the interrogative, we use the auxiliary did followed by the subject and the infinitive:

(question wordA word that introduces a wh-question. E.g.: What are you doing?) auxiliary subject verb (simple infinitive)
(When) did I
you
he/she/it
we
you
they
arrive?

The verb be in past simple

In past simple the auxiliary did is not used if the main verbA verb that can express an action or state in itself. E.g.: John likes squash a lot. ("like") is be. Instead, the following forms are used:

affirmative negative interrogative
I was at home.
You were at home.
He/she/it was at home.
We were at home.
You were at home.
They were at home.
I was not at home.
You were not at home.
He/she/it was not at home.
We were not at home.
You were not at home.
They were not at home.
Was I at home?
Were you at home?
Was he/she/it at home?
Were we at home?
Were you at home?
Were they at home?

The contracted forms wasn't and weren't are often used instead of was not and were not in spoken and in informal written language.

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