English Verb Tenses - Present Perfect Simple Form

NEGATIVE I have not eaten breakfast today you have not been to Asia he has not seen the new film she has not played tennis it has not snowed this winter we have not slept all night they have not tried the food

NEGATIVE SHORT FORM I haven't eaten you haven't been he hasn't seen she hasn't played it hasn't snowed we haven't slept they haven't tried

Positive I have played you have worked he has written she has walked it has rained we have travelled they have studied

Positive Short Form I've played You've worked He's written She's walked it's rained we've travelled they've studied