I must destroy you must destroy she must destroy we must destroy you must destroy they must destroy
V-ing form
I must be destroying you must be destroying she must be destroying we must be destroying you must be destroying they must be destroying
Perfect
I must have destroyed you must have destroyed she must have destroyed we must have destroyed you must have destroyed they must have destroyed
V-ing perfect
I must have been destroying you must have been destroying she must have been destroying we must have been destroying you must have been destroying they must have been destroying
Negation
Simple form
I must not destroy you must not destroy she must not destroy we must not destroy you must not destroy they must not destroy
V-ing form
I must not be destroying you must not be destroying she must not be destroying we must not be destroying you must not be destroying they must not be destroying
Perfect
I must not have destroyed you must not have destroyed she must not have destroyed we must not have destroyed you must not have destroyed they must not have destroyed
V-ing perfect
I must not have been destroying you must not have been destroying she must not have been destroying we must not have been destroying you must not have been destroying they must not have been destroying
Interrogative form
Simple form
must I destroy? must you destroy? must she destroy? must we destroy? must you destroy? must they destroy?
V-ing form
must I be destroying? must you be destroying? must she be destroying? must we be destroying? must you be destroying? must they be destroying?
Perfect
must I have destroyed? must you have destroyed? must she have destroyed? must we have destroyed? must you have destroyed? must they have destroyed?
V-ing perfect
must I have been destroying? must you have been destroying? must she have been destroying? must we have been destroying? must you have been destroying? must they have been destroying?
Interro-negative form
Simple form
must I not destroy? must you not destroy? must she not destroy? must we not destroy? must you not destroy? must they not destroy?
V-ing form
must I not be destroying? must you not be destroying? must she not be destroying? must we not be destroying? must you not be destroying? must they not be destroying?
Perfect
must I not have destroyed? must you not have destroyed? must she not have destroyed? must we not have destroyed? must you not have destroyed? must they not have destroyed?
V-ing perfect
must I not have been destroying? must you not have been destroying? must she not have been destroying? must we not have been destroying? must you not have been destroying? must they not have been destroying?