I must destroy you must destroy he must destroy we must destroy you must destroy they must destroy
V-ing form
I must be destroying you must be destroying he must be destroying we must be destroying you must be destroying they must be destroying
Perfect
I must have destroyed you must have destroyed he 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 he 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 he 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 he 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 he 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 he 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 he destroy? must we destroy? must you destroy? must they destroy?
V-ing form
must I be destroying? must you be destroying? must he be destroying? must we be destroying? must you be destroying? must they be destroying?
Perfect
must I have destroyed? must you have destroyed? must he 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 he 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 he 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 he 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 he 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 he not have been destroying? must we not have been destroying? must you not have been destroying? must they not have been destroying?