English verb conjugation
CAN CANVASS

Regular verb: canvass - canvassed - canvassed

Affirmation

Simple form	V-ing form
I can canvass you can canvass he can canvass we can canvass you can canvass they can canvass	I can be canvassing you can be canvassing he can be canvassing we can be canvassing you can be canvassing they can be canvassing
Perfect	V-ing perfect
I can have canvassed you can have canvassed he can have canvassed we can have canvassed you can have canvassed they can have canvassed	I can have been canvassing you can have been canvassing he can have been canvassing we can have been canvassing you can have been canvassing they can have been canvassing

Negation

Simple form	V-ing form
I can't canvass you can't canvass he can't canvass we can't canvass you can't canvass they can't canvass	I can't be canvassing you can't be canvassing he can't be canvassing we can't be canvassing you can't be canvassing they can't be canvassing
Perfect	V-ing perfect
I can't have canvassed you can't have canvassed he can't have canvassed we can't have canvassed you can't have canvassed they can't have canvassed	I can't have been canvassing you can't have been canvassing he can't have been canvassing we can't have been canvassing you can't have been canvassing they can't have been canvassing

Interrogative form

Simple form	V-ing form
can I canvass? can you canvass? can he canvass? can we canvass? can you canvass? can they canvass?	can I be canvassing? can you be canvassing? can he be canvassing? can we be canvassing? can you be canvassing? can they be canvassing?
Perfect	V-ing perfect
can I have canvassed? can you have canvassed? can he have canvassed? can we have canvassed? can you have canvassed? can they have canvassed?	can I have been canvassing? can you have been canvassing? can he have been canvassing? can we have been canvassing? can you have been canvassing? can they have been canvassing?

Interro-negative form

Simple form	V-ing form
can't I canvass? can't you canvass? can't he canvass? can't we canvass? can't you canvass? can't they canvass?	can't I be canvassing? can't you be canvassing? can't he be canvassing? can't we be canvassing? can't you be canvassing? can't they be canvassing?
Perfect	V-ing perfect
can't I have canvassed? can't you have canvassed? can't he have canvassed? can't we have canvassed? can't you have canvassed? can't they have canvassed?	can't I have been canvassing? can't you have been canvassing? can't he have been canvassing? can't we have been canvassing? can't you have been canvassing? can't they have been canvassing?