may precanvass
Regular verb: precanvass - precanvassed- precanvassed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may precanvass
you may precanvass
he may precanvass
we may precanvass
you may precanvass
they may precanvass 	I may be precanvassing
you may be precanvassing
he may be precanvassing
we may be precanvassing
you may be precanvassing
they may be precanvassing	I may have precanvassed
you may have precanvassed
he may have precanvassed
we may have precanvassed
you may have precanvassed
they may have precanvassed	I may have been precanvassing
you may have been precanvassing
he may have been precanvassing
we may have been precanvassing
you may have been precanvassing
they may have been precanvassing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't precanvass
you mayn't precanvass
he mayn't precanvass
we mayn't precanvass
you mayn't precanvass
they mayn't precanvass 	I mayn't be precanvassing
you mayn't be precanvassing
he mayn't be precanvassing
we mayn't be precanvassing
you mayn't be precanvassing
they mayn't be precanvassing	I mayn't have precanvassed
you mayn't have precanvassed
he mayn't have precanvassed
we mayn't have precanvassed
you mayn't have precanvassed
they mayn't have precanvassed	I mayn't have been precanvassing
you mayn't have been precanvassing
he mayn't have been precanvassing
we mayn't have been precanvassing
you mayn't have been precanvassing
they mayn't have been precanvassing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I precanvass?
may you precanvass?
may he precanvass?
may we precanvass?
may you precanvass?
may they precanvass? 	may I be precanvassing?
may you be precanvassing?
may he be precanvassing?
may we be precanvassing?
may you be precanvassing?
may they be precanvassing? 	may I have precanvassed?
may you have precanvassed?
may he have precanvassed?
may we have precanvassed?
may you have precanvassed?
may they have precanvassed? 	may I have been precanvassing?
may you have been precanvassing?
may he have been precanvassing?
may we have been precanvassing?
may you have been precanvassing?
may they have been precanvassing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I precanvass?
mayn't you precanvass?
mayn't he precanvass?
mayn't we precanvass?
mayn't you precanvass?
mayn't they precanvass? 	mayn't I be precanvassing?
mayn't you be precanvassing?
mayn't he be precanvassing?
mayn't we be precanvassing?
mayn't you be precanvassing?
mayn't they be precanvassing? 	mayn't I have precanvassed?
mayn't you have precanvassed?
mayn't he have precanvassed?
mayn't we have precanvassed?
mayn't you have precanvassed?
mayn't they have precanvassed? 	mayn't I have been precanvassing?
mayn't you have been precanvassing?
mayn't he have been precanvassing?
mayn't we have been precanvassing?
mayn't you have been precanvassing?
mayn't they have been precanvassing?