Respostas

2014-04-29T17:57:14-03:00
para formar uma oração negativa no Simple Present, usa-se do not para os Pronomes Pessoais I, You, We, You e They e does not para a 3ª pessoa do singular (He, She, It). Observe:Ido not workYoudo not workHedoes not workShedoes not workItdoes not workWedo not workYoudo not workTheydo not work

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2014-04-29T17:59:50-03:00
DO= DON'T
DOES=DOESN'T

EXS: I DON'T HAVE A JOB.
        SHE DOESN'T HAVE A NICE HAIR.
 
don't é só para pronomes pessoais.
doesn't e só para pessoa do singular.