Can you...?
Can I...?
Can I go to the toilet?
Can I ....?
Can I use your pen?
Can we...?
Can I ....?
Can I watch the TV?
Can I...?
Can I....?
Can i play the guitar
Can you...?
Can you turn on/off the TV?
Can you help....?
Can you help me with my homework?
Can we....?
Can we play tennis?
Can I....?
Can I play chess?
Can you...?
Can you make a cake?
Can we ....?
Can we ride (our) bikes?
Can you ....?
Can you open the window?