must stapedectomise
Regular verb: stapedectomise - stapedectomised- stapedectomised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must stapedectomise
you must stapedectomise
he must stapedectomise
we must stapedectomise
you must stapedectomise
they must stapedectomise 	I must be stapedectomising
you must be stapedectomising
he must be stapedectomising
we must be stapedectomising
you must be stapedectomising
they must be stapedectomising	I must have stapedectomised
you must have stapedectomised
he must have stapedectomised
we must have stapedectomised
you must have stapedectomised
they must have stapedectomised	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 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't stapedectomise
you mustn't stapedectomise
he mustn't stapedectomise
we mustn't stapedectomise
you mustn't stapedectomise
they mustn't stapedectomise 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
must I stapedectomise?
must you stapedectomise?
must he stapedectomise?
must we stapedectomise?
must you stapedectomise?
must they stapedectomise? 	must I be stapedectomising?
must you be stapedectomising?
must he be stapedectomising?
must we be stapedectomising?
must you be stapedectomising?
must they be stapedectomising? 	must I have stapedectomised?
must you have stapedectomised?
must he have stapedectomised?
must we have stapedectomised?
must you have stapedectomised?
must they have stapedectomised? 	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 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I stapedectomise?
mustn't you stapedectomise?
mustn't he stapedectomise?
mustn't we stapedectomise?
mustn't you stapedectomise?
mustn't they stapedectomise? 	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? 	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? 	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?