must prolapse
Regular verb: prolapse - prolapsed- prolapsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must prolapse
you must prolapse
he must prolapse
we must prolapse
you must prolapse
they must prolapse 	I must be prolapsing
you must be prolapsing
he must be prolapsing
we must be prolapsing
you must be prolapsing
they must be prolapsing	I must have prolapsed
you must have prolapsed
he must have prolapsed
we must have prolapsed
you must have prolapsed
they must have prolapsed	I must have been prolapsing
you must have been prolapsing
he must have been prolapsing
we must have been prolapsing
you must have been prolapsing
they must have been prolapsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't prolapse
you mustn't prolapse
he mustn't prolapse
we mustn't prolapse
you mustn't prolapse
they mustn't prolapse 	I mustn't be prolapsing
you mustn't be prolapsing
he mustn't be prolapsing
we mustn't be prolapsing
you mustn't be prolapsing
they mustn't be prolapsing	I mustn't have prolapsed
you mustn't have prolapsed
he mustn't have prolapsed
we mustn't have prolapsed
you mustn't have prolapsed
they mustn't have prolapsed	I mustn't have been prolapsing
you mustn't have been prolapsing
he mustn't have been prolapsing
we mustn't have been prolapsing
you mustn't have been prolapsing
they mustn't have been prolapsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I prolapse?
must you prolapse?
must he prolapse?
must we prolapse?
must you prolapse?
must they prolapse? 	must I be prolapsing?
must you be prolapsing?
must he be prolapsing?
must we be prolapsing?
must you be prolapsing?
must they be prolapsing? 	must I have prolapsed?
must you have prolapsed?
must he have prolapsed?
must we have prolapsed?
must you have prolapsed?
must they have prolapsed? 	must I have been prolapsing?
must you have been prolapsing?
must he have been prolapsing?
must we have been prolapsing?
must you have been prolapsing?
must they have been prolapsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I prolapse?
mustn't you prolapse?
mustn't he prolapse?
mustn't we prolapse?
mustn't you prolapse?
mustn't they prolapse? 	mustn't I be prolapsing?
mustn't you be prolapsing?
mustn't he be prolapsing?
mustn't we be prolapsing?
mustn't you be prolapsing?
mustn't they be prolapsing? 	mustn't I have prolapsed?
mustn't you have prolapsed?
mustn't he have prolapsed?
mustn't we have prolapsed?
mustn't you have prolapsed?
mustn't they have prolapsed? 	mustn't I have been prolapsing?
mustn't you have been prolapsing?
mustn't he have been prolapsing?
mustn't we have been prolapsing?
mustn't you have been prolapsing?
mustn't they have been prolapsing?