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CAN/CAN'T vs. COULD/COULDN'T

CAN
CAN'T
Expresses Ability
Cats can catch mice easily.
Cats can't type!
COULD
COULDN'T
Expresses Past Ability
I could count to 100 when I was 5 years old.
I couldn't go to school when I was 3 years old.

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CAN CAN'T COULD COULDN'T

Score:

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