I may canvass you may canvass she may canvass we may canvass you may canvass they may canvass
V-ing form
I may be canvassing you may be canvassing she may be canvassing we may be canvassing you may be canvassing they may be canvassing
Perfect
I may have canvassed you may have canvassed she may have canvassed we may have canvassed you may have canvassed they may have canvassed
V-ing perfect
I may have been canvassing you may have been canvassing she may have been canvassing we may have been canvassing you may have been canvassing they may have been canvassing
Negation
Simple form
I mayn't canvass you mayn't canvass she mayn't canvass we mayn't canvass you mayn't canvass they mayn't canvass
V-ing form
I mayn't be canvassing you mayn't be canvassing she mayn't be canvassing we mayn't be canvassing you mayn't be canvassing they mayn't be canvassing
Perfect
I mayn't have canvassed you mayn't have canvassed she mayn't have canvassed we mayn't have canvassed you mayn't have canvassed they mayn't have canvassed
V-ing perfect
I mayn't have been canvassing you mayn't have been canvassing she mayn't have been canvassing we mayn't have been canvassing you mayn't have been canvassing they mayn't have been canvassing
Interrogative form
Simple form
may I canvass? may you canvass? may she canvass? may we canvass? may you canvass? may they canvass?
V-ing form
may I be canvassing? may you be canvassing? may she be canvassing? may we be canvassing? may you be canvassing? may they be canvassing?
Perfect
may I have canvassed? may you have canvassed? may she have canvassed? may we have canvassed? may you have canvassed? may they have canvassed?
V-ing perfect
may I have been canvassing? may you have been canvassing? may she have been canvassing? may we have been canvassing? may you have been canvassing? may they have been canvassing?
Interro-negative form
Simple form
mayn't I canvass? mayn't you canvass? mayn't she canvass? mayn't we canvass? mayn't you canvass? mayn't they canvass?
V-ing form
mayn't I be canvassing? mayn't you be canvassing? mayn't she be canvassing? mayn't we be canvassing? mayn't you be canvassing? mayn't they be canvassing?
Perfect
mayn't I have canvassed? mayn't you have canvassed? mayn't she have canvassed? mayn't we have canvassed? mayn't you have canvassed? mayn't they have canvassed?
V-ing perfect
mayn't I have been canvassing? mayn't you have been canvassing? mayn't she have been canvassing? mayn't we have been canvassing? mayn't you have been canvassing? mayn't they have been canvassing?