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 cannot propound you cannot propound he cannot propound we cannot propound you cannot propound they cannot propound	I cannot be propounding you cannot be propounding he cannot be propounding we cannot be propounding you cannot be propounding they cannot be propounding
Perfect	V-ing perfect
I cannot have propounded you cannot have propounded he cannot have propounded we cannot have propounded you cannot have propounded they cannot have propounded	I cannot have been propounding you cannot have been propounding he cannot have been propounding we cannot have been propounding you cannot have been propounding they cannot 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 I not propound? can you not propound? can he not propound? can we not propound? can you not propound? can they not propound?	can I not be propounding? can you not be propounding? can he not be propounding? can we not be propounding? can you not be propounding? can they not be propounding?
Perfect	V-ing perfect
can I not have propounded? can you not have propounded? can he not have propounded? can we not have propounded? can you not have propounded? can they not have propounded?	can I not have been propounding? can you not have been propounding? can he not have been propounding? can we not have been propounding? can you not have been propounding? can they not have been propounding?