may crank
Regular verb: crank - cranked- cranked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may crank
you may crank
she may crank
we may crank
you may crank
they may crank 	I may be cranking
you may be cranking
she may be cranking
we may be cranking
you may be cranking
they may be cranking	I may have cranked
you may have cranked
she may have cranked
we may have cranked
you may have cranked
they may have cranked	I may have been cranking
you may have been cranking
she may have been cranking
we may have been cranking
you may have been cranking
they may have been cranking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't crank
you mayn't crank
she mayn't crank
we mayn't crank
you mayn't crank
they mayn't crank 	I mayn't be cranking
you mayn't be cranking
she mayn't be cranking
we mayn't be cranking
you mayn't be cranking
they mayn't be cranking	I mayn't have cranked
you mayn't have cranked
she mayn't have cranked
we mayn't have cranked
you mayn't have cranked
they mayn't have cranked	I mayn't have been cranking
you mayn't have been cranking
she mayn't have been cranking
we mayn't have been cranking
you mayn't have been cranking
they mayn't have been cranking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I crank?
may you crank?
may she crank?
may we crank?
may you crank?
may they crank? 	may I be cranking?
may you be cranking?
may she be cranking?
may we be cranking?
may you be cranking?
may they be cranking? 	may I have cranked?
may you have cranked?
may she have cranked?
may we have cranked?
may you have cranked?
may they have cranked? 	may I have been cranking?
may you have been cranking?
may she have been cranking?
may we have been cranking?
may you have been cranking?
may they have been cranking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I crank?
mayn't you crank?
mayn't she crank?
mayn't we crank?
mayn't you crank?
mayn't they crank? 	mayn't I be cranking?
mayn't you be cranking?
mayn't she be cranking?
mayn't we be cranking?
mayn't you be cranking?
mayn't they be cranking? 	mayn't I have cranked?
mayn't you have cranked?
mayn't she have cranked?
mayn't we have cranked?
mayn't you have cranked?
mayn't they have cranked? 	mayn't I have been cranking?
mayn't you have been cranking?
mayn't she have been cranking?
mayn't we have been cranking?
mayn't you have been cranking?
mayn't they have been cranking?