English verb conjugation
COULD PRECANVASS

Regular verb: precanvass - precanvassed - precanvassed

Affirmation

Simple form	V-ing form
I could precanvass you could precanvass she could precanvass we could precanvass you could precanvass they could precanvass	I could be precanvassing you could be precanvassing she could be precanvassing we could be precanvassing you could be precanvassing they could be precanvassing
Perfect	V-ing perfect
I could have precanvassed you could have precanvassed she could have precanvassed we could have precanvassed you could have precanvassed they could have precanvassed	I could have been precanvassing you could have been precanvassing she could have been precanvassing we could have been precanvassing you could have been precanvassing they could have been precanvassing

Negation

Simple form	V-ing form
I couldn't precanvass you couldn't precanvass she couldn't precanvass we couldn't precanvass you couldn't precanvass they couldn't precanvass	I couldn't be precanvassing you couldn't be precanvassing she couldn't be precanvassing we couldn't be precanvassing you couldn't be precanvassing they couldn't be precanvassing
Perfect	V-ing perfect
I couldn't have precanvassed you couldn't have precanvassed she couldn't have precanvassed we couldn't have precanvassed you couldn't have precanvassed they couldn't have precanvassed	I couldn't have been precanvassing you couldn't have been precanvassing she couldn't have been precanvassing we couldn't have been precanvassing you couldn't have been precanvassing they couldn't have been precanvassing

Interrogative form

Simple form	V-ing form
could I precanvass? could you precanvass? could she precanvass? could we precanvass? could you precanvass? could they precanvass?	could I be precanvassing? could you be precanvassing? could she be precanvassing? could we be precanvassing? could you be precanvassing? could they be precanvassing?
Perfect	V-ing perfect
could I have precanvassed? could you have precanvassed? could she have precanvassed? could we have precanvassed? could you have precanvassed? could they have precanvassed?	could I have been precanvassing? could you have been precanvassing? could she have been precanvassing? could we have been precanvassing? could you have been precanvassing? could they have been precanvassing?

Interro-negative form

Simple form	V-ing form
couldn't I precanvass? couldn't you precanvass? couldn't she precanvass? couldn't we precanvass? couldn't you precanvass? couldn't they precanvass?	couldn't I be precanvassing? couldn't you be precanvassing? couldn't she be precanvassing? couldn't we be precanvassing? couldn't you be precanvassing? couldn't they be precanvassing?
Perfect	V-ing perfect
couldn't I have precanvassed? couldn't you have precanvassed? couldn't she have precanvassed? couldn't we have precanvassed? couldn't you have precanvassed? couldn't they have precanvassed?	couldn't I have been precanvassing? couldn't you have been precanvassing? couldn't she have been precanvassing? couldn't we have been precanvassing? couldn't you have been precanvassing? couldn't they have been precanvassing?