INTERMEDIATE - GRAMMAR


CAN/COULD

CAN is used:
to talk about ability (I can run really fast.)
for asking for permission (Can I have an ice-cream mummy?)
for giving permission (Yes, you can have an ice-cream.)

COULD is used:
for possibility (It could rain later.)
for asking for permission (Could I borrow your pen)
in the past instead of 'can' (I could run really fast when I was young.)