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					           AFFIRMATIVE                                   NEGATIVE                                INTERROGATIVE

To form the Present Simple Tense we           Negative sentences are formed with         Interrogative sentences are formed
use the verb’s base form (go, walk,           the auxiliary verb do/does (he, she,       with the auxiliary verb do/does (he,
speak). In 3rd person singular (he, she,      it), the negative adverb not and the       she, it) and the base form of the verb.
it) the base form of the verb takes           base form of the verb.
s/es.                                                                                    Do you always do your
                                              We do not do our homework on               homework ?
I do my homework every day.                   Saturdays.




             He likes reading books.           He does not like writing essays.                  Does he like doing tests?




                                                        Remember

     rd
The 3 person singular is usually                The 3rd person singular of do is does.      The 3rd person singular of do is
formed by adding s. But there are a few       That means that in negative sentences      does. That means that in
exceptions to the rule:                       the s of the main verb is placed behind    interrogative sentences the s of the
    The verbs can, may, might, must           the auxiliary verb do: he works – he       main verb is placed behind the
remain the same in all forms. So don’t        doesn’t work.                              auxiliary verb do:
add s: he can, she may, it must.                                                         Does she speak English well?
                                                 We do not use the auxiliary for the
    Verbs ending in o or a sibilant (ch,                                                    We use inverted word order in
                                              verb to be to form negative sentences:
sh, s, z, x) add es instead of s: do – he                                                interrogative sentences:
                                              I am not
does, wash – she washes.                                                                 do / does + subject + main verb
                                              We/ They / You are not      at home.
    A final y after a consonant becomes                                                      We do not use the auxiliary for
                                              He/ She / It is not
ie before s: worry – he worries.                                                         the verb to be to form interrogative
But a final y after a vowel (a, e, i, o, u)       We often use short forms in            sentences:
is not modified: play – he plays.             negative sentences in the Present          Am I late for the lesson?
    The 3rd form singular of have is          Simple:                                    Are we / you / they right?
has: I have – she has.                        I / We/ You / They don’t play football.    Is he / she / it ill?
    The verb to be has the following          He / She / It doesn’t play football.           We do not use the auxiliary in
forms in the Present Simple:                  We/ You / They aren’t tall.                interrogative sentences when we use
I am                                          He/ She / It isn’t hungry.                 who, what, which, whose as the
We / You / They are                                                                      subject:
He/She /It is                                                                            Who likes to do grammar exercises?

				
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posted:11/10/2011
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