I must revive you must revive he must revive we must revive you must revive they must revive
V-ing form
I must be reviving you must be reviving he must be reviving we must be reviving you must be reviving they must be reviving
Perfect
I must have revived you must have revived he must have revived we must have revived you must have revived they must have revived
V-ing perfect
I must have been reviving you must have been reviving he must have been reviving we must have been reviving you must have been reviving they must have been reviving
Negation
Simple form
I mustn't revive you mustn't revive he mustn't revive we mustn't revive you mustn't revive they mustn't revive
V-ing form
I mustn't be reviving you mustn't be reviving he mustn't be reviving we mustn't be reviving you mustn't be reviving they mustn't be reviving
Perfect
I mustn't have revived you mustn't have revived he mustn't have revived we mustn't have revived you mustn't have revived they mustn't have revived
V-ing perfect
I mustn't have been reviving you mustn't have been reviving he mustn't have been reviving we mustn't have been reviving you mustn't have been reviving they mustn't have been reviving
Interrogative form
Simple form
must I revive? must you revive? must he revive? must we revive? must you revive? must they revive?
V-ing form
must I be reviving? must you be reviving? must he be reviving? must we be reviving? must you be reviving? must they be reviving?
Perfect
must I have revived? must you have revived? must he have revived? must we have revived? must you have revived? must they have revived?
V-ing perfect
must I have been reviving? must you have been reviving? must he have been reviving? must we have been reviving? must you have been reviving? must they have been reviving?
Interro-negative form
Simple form
mustn't I revive? mustn't you revive? mustn't he revive? mustn't we revive? mustn't you revive? mustn't they revive?
V-ing form
mustn't I be reviving? mustn't you be reviving? mustn't he be reviving? mustn't we be reviving? mustn't you be reviving? mustn't they be reviving?
Perfect
mustn't I have revived? mustn't you have revived? mustn't he have revived? mustn't we have revived? mustn't you have revived? mustn't they have revived?
V-ing perfect
mustn't I have been reviving? mustn't you have been reviving? mustn't he have been reviving? mustn't we have been reviving? mustn't you have been reviving? mustn't they have been reviving?