I must educate you must educate she must educate we must educate you must educate they must educate
V-ing form
I must be educating you must be educating she must be educating we must be educating you must be educating they must be educating
Perfect
I must have educated you must have educated she must have educated we must have educated you must have educated they must have educated
V-ing perfect
I must have been educating you must have been educating she must have been educating we must have been educating you must have been educating they must have been educating
Negation
Simple form
I must not educate you must not educate she must not educate we must not educate you must not educate they must not educate
V-ing form
I must not be educating you must not be educating she must not be educating we must not be educating you must not be educating they must not be educating
Perfect
I must not have educated you must not have educated she must not have educated we must not have educated you must not have educated they must not have educated
V-ing perfect
I must not have been educating you must not have been educating she must not have been educating we must not have been educating you must not have been educating they must not have been educating
Interrogative form
Simple form
must I educate? must you educate? must she educate? must we educate? must you educate? must they educate?
V-ing form
must I be educating? must you be educating? must she be educating? must we be educating? must you be educating? must they be educating?
Perfect
must I have educated? must you have educated? must she have educated? must we have educated? must you have educated? must they have educated?
V-ing perfect
must I have been educating? must you have been educating? must she have been educating? must we have been educating? must you have been educating? must they have been educating?
Interro-negative form
Simple form
must I not educate? must you not educate? must she not educate? must we not educate? must you not educate? must they not educate?
V-ing form
must I not be educating? must you not be educating? must she not be educating? must we not be educating? must you not be educating? must they not be educating?
Perfect
must I not have educated? must you not have educated? must she not have educated? must we not have educated? must you not have educated? must they not have educated?
V-ing perfect
must I not have been educating? must you not have been educating? must she not have been educating? must we not have been educating? must you not have been educating? must they not have been educating?