English verb conjugation
COULD PROPOUND

Regular verb: propound - propounded - propounded

Affirmation

Simple form	V-ing form
I could propound you could propound he could propound we could propound you could propound they could propound	I could be propounding you could be propounding he could be propounding we could be propounding you could be propounding they could be propounding
Perfect	V-ing perfect
I could have propounded you could have propounded he could have propounded we could have propounded you could have propounded they could have propounded	I could have been propounding you could have been propounding he could have been propounding we could have been propounding you could have been propounding they could have been propounding

Negation

Simple form	V-ing form
I couldn't propound you couldn't propound he couldn't propound we couldn't propound you couldn't propound they couldn't propound	I couldn't be propounding you couldn't be propounding he couldn't be propounding we couldn't be propounding you couldn't be propounding they couldn't be propounding
Perfect	V-ing perfect
I couldn't have propounded you couldn't have propounded he couldn't have propounded we couldn't have propounded you couldn't have propounded they couldn't have propounded	I couldn't have been propounding you couldn't have been propounding he couldn't have been propounding we couldn't have been propounding you couldn't have been propounding they couldn't have been propounding

Interrogative form

Simple form	V-ing form
could I propound? could you propound? could he propound? could we propound? could you propound? could they propound?	could I be propounding? could you be propounding? could he be propounding? could we be propounding? could you be propounding? could they be propounding?
Perfect	V-ing perfect
could I have propounded? could you have propounded? could he have propounded? could we have propounded? could you have propounded? could they have propounded?	could I have been propounding? could you have been propounding? could he have been propounding? could we have been propounding? could you have been propounding? could they have been propounding?

Interro-negative form

Simple form	V-ing form
couldn't I propound? couldn't you propound? couldn't he propound? couldn't we propound? couldn't you propound? couldn't they propound?	couldn't I be propounding? couldn't you be propounding? couldn't he be propounding? couldn't we be propounding? couldn't you be propounding? couldn't they be propounding?
Perfect	V-ing perfect
couldn't I have propounded? couldn't you have propounded? couldn't he have propounded? couldn't we have propounded? couldn't you have propounded? couldn't they have propounded?	couldn't I have been propounding? couldn't you have been propounding? couldn't he have been propounding? couldn't we have been propounding? couldn't you have been propounding? couldn't they have been propounding?