English verb conjugation
CAN PROPOUND

Regular verb: propound - propounded - propounded

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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