English verb conjugation
COULD CON

Regular verb: con - conned - conned

Affirmation

Simple form	V-ing form
I could con you could con he could con we could con you could con they could con	I could be conning you could be conning he could be conning we could be conning you could be conning they could be conning
Perfect	V-ing perfect
I could have conned you could have conned he could have conned we could have conned you could have conned they could have conned	I could have been conning you could have been conning he could have been conning we could have been conning you could have been conning they could have been conning

Negation

Simple form	V-ing form
I couldn't con you couldn't con he couldn't con we couldn't con you couldn't con they couldn't con	I couldn't be conning you couldn't be conning he couldn't be conning we couldn't be conning you couldn't be conning they couldn't be conning
Perfect	V-ing perfect
I couldn't have conned you couldn't have conned he couldn't have conned we couldn't have conned you couldn't have conned they couldn't have conned	I couldn't have been conning you couldn't have been conning he couldn't have been conning we couldn't have been conning you couldn't have been conning they couldn't have been conning

Interrogative form

Simple form	V-ing form
could I con? could you con? could he con? could we con? could you con? could they con?	could I be conning? could you be conning? could he be conning? could we be conning? could you be conning? could they be conning?
Perfect	V-ing perfect
could I have conned? could you have conned? could he have conned? could we have conned? could you have conned? could they have conned?	could I have been conning? could you have been conning? could he have been conning? could we have been conning? could you have been conning? could they have been conning?

Interro-negative form

Simple form	V-ing form
couldn't I con? couldn't you con? couldn't he con? couldn't we con? couldn't you con? couldn't they con?	couldn't I be conning? couldn't you be conning? couldn't he be conning? couldn't we be conning? couldn't you be conning? couldn't they be conning?
Perfect	V-ing perfect
couldn't I have conned? couldn't you have conned? couldn't he have conned? couldn't we have conned? couldn't you have conned? couldn't they have conned?	couldn't I have been conning? couldn't you have been conning? couldn't he have been conning? couldn't we have been conning? couldn't you have been conning? couldn't they have been conning?