I may dumbfound you may dumbfound he may dumbfound we may dumbfound you may dumbfound they may dumbfound
V-ing form
I may be dumbfounding you may be dumbfounding he may be dumbfounding we may be dumbfounding you may be dumbfounding they may be dumbfounding
Perfect
I may have dumbfounded you may have dumbfounded he may have dumbfounded we may have dumbfounded you may have dumbfounded they may have dumbfounded
V-ing perfect
I may have been dumbfounding you may have been dumbfounding he may have been dumbfounding we may have been dumbfounding you may have been dumbfounding they may have been dumbfounding
Negation
Simple form
I may not dumbfound you may not dumbfound he may not dumbfound we may not dumbfound you may not dumbfound they may not dumbfound
V-ing form
I may not be dumbfounding you may not be dumbfounding he may not be dumbfounding we may not be dumbfounding you may not be dumbfounding they may not be dumbfounding
Perfect
I may not have dumbfounded you may not have dumbfounded he may not have dumbfounded we may not have dumbfounded you may not have dumbfounded they may not have dumbfounded
V-ing perfect
I may not have been dumbfounding you may not have been dumbfounding he may not have been dumbfounding we may not have been dumbfounding you may not have been dumbfounding they may not have been dumbfounding
Interrogative form
Simple form
may I dumbfound? may you dumbfound? may he dumbfound? may we dumbfound? may you dumbfound? may they dumbfound?
V-ing form
may I be dumbfounding? may you be dumbfounding? may he be dumbfounding? may we be dumbfounding? may you be dumbfounding? may they be dumbfounding?
Perfect
may I have dumbfounded? may you have dumbfounded? may he have dumbfounded? may we have dumbfounded? may you have dumbfounded? may they have dumbfounded?
V-ing perfect
may I have been dumbfounding? may you have been dumbfounding? may he have been dumbfounding? may we have been dumbfounding? may you have been dumbfounding? may they have been dumbfounding?
Interro-negative form
Simple form
may I not dumbfound? may you not dumbfound? may he not dumbfound? may we not dumbfound? may you not dumbfound? may they not dumbfound?
V-ing form
may I not be dumbfounding? may you not be dumbfounding? may he not be dumbfounding? may we not be dumbfounding? may you not be dumbfounding? may they not be dumbfounding?
Perfect
may I not have dumbfounded? may you not have dumbfounded? may he not have dumbfounded? may we not have dumbfounded? may you not have dumbfounded? may they not have dumbfounded?
V-ing perfect
may I not have been dumbfounding? may you not have been dumbfounding? may he not have been dumbfounding? may we not have been dumbfounding? may you not have been dumbfounding? may they not have been dumbfounding?