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