Modal CAN an MAY

MODAL CAN	Pp+ CAN+ Sf verb	pp+  CAN not +   sf verb	CAN+ pp + sf verb	MODAL MAY	Pp +MAY + sf verb	Pp +MAY +  not + sf verb	MAY+  pp +  sf verb
PP	POSITIVE        +	NEGATIVE        -	INTERROGATIVE  ?	PP	POSITIVE     +	NEGATIVE      -	INTERROGATIVE  ?
EXAMPLE	I can see	I can¨t see	Can I see?	EXAMPLE	I may leave	You may leave	May I leave?
I	I can draw	I can't draw	Can I draw?	I	I may buy	I may not buy	May I buy?
YOU	You can sing	You can't sing	Can you sing?	YOU	You may clean	You may not clean	May You clean?
HE	He can believe	He can't believe	Can he believe?	HE	He may smoke	He may not smoke	May he smoke?
SHE	She can change	She can't change	Can she change?	SHE	She may comb	She may not comb	May She comb?
IT	It can rain	It can't rain	Can it rain?	IT	It may find	It may not find	May It find?
WE	We can drink	We can't drink	Can we drink?	WE	We may sell	We may not sell	May We sell?
YOU	You can drive	You can't drive	Can you drive?	YOU	You may camping	You may not camping	May You camping?
THEY	They can run	They can't run	Can they run?	THEY	They may swimming	They may not swimming	May they swimming?