I may canvass you may canvass he may canvass we may canvass you may canvass they may canvass
V-ing form
I may be canvassing you may be canvassing he may be canvassing we may be canvassing you may be canvassing they may be canvassing
Perfect
I may have canvassed you may have canvassed he 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 he 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 he 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 he 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 he 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 he 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 he canvass? may we canvass? may you canvass? may they canvass?
V-ing form
may I be canvassing? may you be canvassing? may he be canvassing? may we be canvassing? may you be canvassing? may they be canvassing?
Perfect
may I have canvassed? may you have canvassed? may he 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 he 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 he 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 he 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 he 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 he have been canvassing? mayn't we have been canvassing? mayn't you have been canvassing? mayn't they have been canvassing?