may snowplough
Regular verb: snowplough - snowploughed- snowploughed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may snowplough
you may snowplough
she may snowplough
we may snowplough
you may snowplough
they may snowplough 	I may be snowploughing
you may be snowploughing
she may be snowploughing
we may be snowploughing
you may be snowploughing
they may be snowploughing	I may have snowploughed
you may have snowploughed
she may have snowploughed
we may have snowploughed
you may have snowploughed
they may have snowploughed	I may have been snowploughing
you may have been snowploughing
she may have been snowploughing
we may have been snowploughing
you may have been snowploughing
they may have been snowploughing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't snowplough
you mayn't snowplough
she mayn't snowplough
we mayn't snowplough
you mayn't snowplough
they mayn't snowplough 	I mayn't be snowploughing
you mayn't be snowploughing
she mayn't be snowploughing
we mayn't be snowploughing
you mayn't be snowploughing
they mayn't be snowploughing	I mayn't have snowploughed
you mayn't have snowploughed
she mayn't have snowploughed
we mayn't have snowploughed
you mayn't have snowploughed
they mayn't have snowploughed	I mayn't have been snowploughing
you mayn't have been snowploughing
she mayn't have been snowploughing
we mayn't have been snowploughing
you mayn't have been snowploughing
they mayn't have been snowploughing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I snowplough?
may you snowplough?
may she snowplough?
may we snowplough?
may you snowplough?
may they snowplough? 	may I be snowploughing?
may you be snowploughing?
may she be snowploughing?
may we be snowploughing?
may you be snowploughing?
may they be snowploughing? 	may I have snowploughed?
may you have snowploughed?
may she have snowploughed?
may we have snowploughed?
may you have snowploughed?
may they have snowploughed? 	may I have been snowploughing?
may you have been snowploughing?
may she have been snowploughing?
may we have been snowploughing?
may you have been snowploughing?
may they have been snowploughing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I snowplough?
mayn't you snowplough?
mayn't she snowplough?
mayn't we snowplough?
mayn't you snowplough?
mayn't they snowplough? 	mayn't I be snowploughing?
mayn't you be snowploughing?
mayn't she be snowploughing?
mayn't we be snowploughing?
mayn't you be snowploughing?
mayn't they be snowploughing? 	mayn't I have snowploughed?
mayn't you have snowploughed?
mayn't she have snowploughed?
mayn't we have snowploughed?
mayn't you have snowploughed?
mayn't they have snowploughed? 	mayn't I have been snowploughing?
mayn't you have been snowploughing?
mayn't she have been snowploughing?
mayn't we have been snowploughing?
mayn't you have been snowploughing?
mayn't they have been snowploughing?