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