Hook
“Can I use your phone?” “Could I ask you a question?” Both are asking for permission — but one sounds a little more polite.
Notice
“Can I open the window?” — “Could I leave early today?” — “You can’t park here.” — “Students can’t use phones during the exam.”
Rule
Can asks for or gives permission in everyday situations. Could is a more polite way to ask (not past tense here — it’s about politeness). Can’t means something isn’t allowed. Rules are often expressed this way: “You can’t smoke here” / “Visitors can park in the front lot.”
Practice
- ______ I borrow your pen, please? (polite) Answer: Could
- You ______ (can’t) use your phone during the test. Answer: can’t
- ______ I sit here? Answer: Can
- Visitors ______ (can) park in the front lot. Answer: can
- You ______ (can’t) enter without a ticket. Answer: can’t
Connect
Practice more permission and rule sentences with our Grammar Quiz.
This lesson supports: I can understand and give simple instructions and rules.
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