Asking for permission

my best friend es having a party,

• can I go to your party?

• may I go to your party?

• sholud I go to your party?

You are in a restaurant

• CAN I HAVE AN ORANGE JUICE?

• MAY I HAVE AN ORANGE JUICE?

• COULD I HAVE AN AORANGE JUICE?

YOU ARE AT SCHOOL WITH YOR CLASSMATE

• MAY I SIT HERE?

• COULD I SIT HERE?

• I CAN SIT HERE

YOU ARE IN A BUS

• CAN I SIT HERE?

• COULD I SIT HERE?

• MAY I SIT HERE ?

YOU ARE AT SCHOOL WITH YOUR TEACHER

• CAN I STAND UP TEACHER?

• MAY I STAND UP TEACHER?

• COULD I STAND UP TEACHER?

YOU ARE IN THE STREET AND ASK A QUESTION TO THE POLICE OFFICER

• CAN I ASK YOU A QUESTION?

• COULD I ASK YOU A QUESTION?

• MAY I ASK YOU A QUESTION?

YOU ARE IN YOUR HOUSE WITH YOUR FATHER, AND WANT TO ASK A QUESTION

• CAN I ASK YOU A QUESTION?

• MAY I ASK YOU A QUESTION?

• I ASK YOU A QUESTION?

YOU ASK YOUR SISTER FOR A PENCIL

• MAY A BORROW A PENCIL?

• I BORROW A PENCIL

• COULD A BORROW A PENCIL?

YOU ARE IN A CAFETERIA ALONE AND YOU NEED A PEN

• COULD I BORROW A PEN?

• CAN I BORROW A PEN?

• MAY I BORROW A PEN?

IT IS 38° DEGREES IN THE CLASSROOM

• CAN I OPEN THE WINDOW TEACHER?

• MAY I OPEN THE WINDOW TEACHER?

• COULD I OPEN THE WINDOW TEACHER?