| A | B |
|---|
| Can I...? | Used to informally request permission. |
| Could I...? | Used to politely request permission. |
| May I...? | Used to politely request permission; considered more formal. |
| Can you...? | Used to informally ask someone to do something. |
| Could you...? | Used to ask someone if they want to do something AND if it is possible to do it. |
| Would you...? | Used to politely ask someone to do something. |
| Would you mind + ing? | A formal way to make a request and check if the request causes trouble or inconvenience. |
| Would you mind if I + simple past? | A formal way to ask permission and to check if the action will cause discomfort or trouble. |
