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