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