I must spoke you must spoke she must spoke we must spoke you must spoke they must spoke
V-ing form
I must be spoking you must be spoking she must be spoking we must be spoking you must be spoking they must be spoking
Perfect
I must have spoked you must have spoked she must have spoked we must have spoked you must have spoked they must have spoked
V-ing perfect
I must have been spoking you must have been spoking she must have been spoking we must have been spoking you must have been spoking they must have been spoking
Negation
Simple form
I must not spoke you must not spoke she must not spoke we must not spoke you must not spoke they must not spoke
V-ing form
I must not be spoking you must not be spoking she must not be spoking we must not be spoking you must not be spoking they must not be spoking
Perfect
I must not have spoked you must not have spoked she must not have spoked we must not have spoked you must not have spoked they must not have spoked
V-ing perfect
I must not have been spoking you must not have been spoking she must not have been spoking we must not have been spoking you must not have been spoking they must not have been spoking
Interrogative form
Simple form
must I spoke? must you spoke? must she spoke? must we spoke? must you spoke? must they spoke?
V-ing form
must I be spoking? must you be spoking? must she be spoking? must we be spoking? must you be spoking? must they be spoking?
Perfect
must I have spoked? must you have spoked? must she have spoked? must we have spoked? must you have spoked? must they have spoked?
V-ing perfect
must I have been spoking? must you have been spoking? must she have been spoking? must we have been spoking? must you have been spoking? must they have been spoking?
Interro-negative form
Simple form
must I not spoke? must you not spoke? must she not spoke? must we not spoke? must you not spoke? must they not spoke?
V-ing form
must I not be spoking? must you not be spoking? must she not be spoking? must we not be spoking? must you not be spoking? must they not be spoking?
Perfect
must I not have spoked? must you not have spoked? must she not have spoked? must we not have spoked? must you not have spoked? must they not have spoked?
V-ing perfect
must I not have been spoking? must you not have been spoking? must she not have been spoking? must we not have been spoking? must you not have been spoking? must they not have been spoking?