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Present perfect vs. Past simple (present perfect (use: (express something…
Present perfect vs. Past simple
present perfect
use:
express something that start in the past and continus in the present
have, has
modify the verbs
S+have/has+vpp+complement
I have done my homework
have/has+subject+vpp+complement+?
have you run the marathon?
S+haven't/hasn't+vpp+complement
she has'nt slept very well
past simple
use.
express something that staart in the past and finish in the past
did, did'nt
modifi the verbs
s + vp+complement
I idid my homework
s+did't+vp+complement
She didnt slept veery well
did+s+vp+complent+?
did you run the marathone?