may cower
Regular verb: cower - cowered- cowered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may cower
you may cower
she may cower
we may cower
you may cower
they may cower 	I may be cowering
you may be cowering
she may be cowering
we may be cowering
you may be cowering
they may be cowering	I may have cowered
you may have cowered
she may have cowered
we may have cowered
you may have cowered
they may have cowered	I may have been cowering
you may have been cowering
she may have been cowering
we may have been cowering
you may have been cowering
they may have been cowering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't cower
you mayn't cower
she mayn't cower
we mayn't cower
you mayn't cower
they mayn't cower 	I mayn't be cowering
you mayn't be cowering
she mayn't be cowering
we mayn't be cowering
you mayn't be cowering
they mayn't be cowering	I mayn't have cowered
you mayn't have cowered
she mayn't have cowered
we mayn't have cowered
you mayn't have cowered
they mayn't have cowered	I mayn't have been cowering
you mayn't have been cowering
she mayn't have been cowering
we mayn't have been cowering
you mayn't have been cowering
they mayn't have been cowering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I cower?
may you cower?
may she cower?
may we cower?
may you cower?
may they cower? 	may I be cowering?
may you be cowering?
may she be cowering?
may we be cowering?
may you be cowering?
may they be cowering? 	may I have cowered?
may you have cowered?
may she have cowered?
may we have cowered?
may you have cowered?
may they have cowered? 	may I have been cowering?
may you have been cowering?
may she have been cowering?
may we have been cowering?
may you have been cowering?
may they have been cowering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I cower?
mayn't you cower?
mayn't she cower?
mayn't we cower?
mayn't you cower?
mayn't they cower? 	mayn't I be cowering?
mayn't you be cowering?
mayn't she be cowering?
mayn't we be cowering?
mayn't you be cowering?
mayn't they be cowering? 	mayn't I have cowered?
mayn't you have cowered?
mayn't she have cowered?
mayn't we have cowered?
mayn't you have cowered?
mayn't they have cowered? 	mayn't I have been cowering?
mayn't you have been cowering?
mayn't she have been cowering?
mayn't we have been cowering?
mayn't you have been cowering?
mayn't they have been cowering?