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