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