Modal verbs

Can
ability: I can ride a horse.​
opportunity: We can stay with my brother when we are in Paris.​
permission: She cannot stay out after 10 PM.​
request: Can you hand me the stapler?​
possibility: Any child can grow up to be president.​
Present Positive: can​
Present Negative: can’t​
Past Positive: could, was able to, was allowed to​
Past Negative: couldn’t, wasn’t able to, wasn’t allowed to​
Future Positive: will be able to, can​
Future Negative: won’t be able to, can’t​