Video lesson · Can / Could / Be Able to
Requests with can and could refer to using these verbs to ask someone to do something for you. Can is used for informal, direct requests, while could is more polite and formal.
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Can / Could
Be Able to
Present and Future Ability
Skills
Unusual Ability
With Verbs of Senses
Theoretical Possibility
Permission / Prohibition
Offers
Deduction / Negative
Present Use / Summary
Possibility / Ability in the Past
Permission / Prohibition in the Past
With Verbs of Senses / Past
Past Skills
Possibility / Ability in the Past + Fact 
Past Use / Summary
Ability in the FutureGet the app and practice this topic as a game — with XP, streaks and instant feedback.
