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SIMPLE PAST

X

PRESENT PERFECT

AFIRMATIVA

Sub+ verb+ed + complement

NEGATIVA

Sub+ didn't + verb

INTERROGATIVA

Did +sub+ verb+ ?

EXEMPLE +

I STOPPED HERE YESTERDAY

EXEMPLE -

I DIDN`T STOP HERE YESTERDAY

EXEMPLE ?

DID I STOP YESTERDAY?HERE

Its used to talk about uncompleted actions in the non specific time.

Its used to talk about completed actions in the specific time.

AFIRMATIVA

Sub+ have/has + past participle

NEGATIVA

Sub+ haven`t/ hasn`t + past participle

INTERROGATIVA

Have/Has + sub+past participle

EXEMPLE +

I have tried sushi.

EXEMPLE -

I haven`t tried sushi.

EXEMPLE ?

Have you tried sushi?