CAN, SHOULD, MAY

[bedazzled]

Hi All

I want to know the difference between these three sentences:

1. Can I come in?
2. May I come in?
3. Should I come in?

[pesfunk]

Hi All

I want to know the difference between these three sentences:

1. Can I come in? - Do I have the ability to come in ?
2. May I come in? - Do I have the permission to come in ?
3. Should I come in? - Would it be right if I come in ?

[kvcpk]

Agree with pesfunk for first two.

the third one: Do you require me to come in?