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