COULD :- Past Possibility and Ability
- My Grand Mother could walk 5 miles a day.
- My Grand Father could lift 90 kgs of weight when he was young.
- I could swim quite well when I was younger.
- I could speak German when I was seven years old.
COULD :- More Polite Request
- Could you please direct me the route?
- Could you help me in finding this location?
- Could I have some coffee?
COULD HAVE :-
- He could have found his wallet.
- She could have won the race.
- India could have won the match against Australia.