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