must estrange
Regular verb: estrange - estranged- estranged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must estrange
you must estrange
he must estrange
we must estrange
you must estrange
they must estrange 	I must be estranging
you must be estranging
he must be estranging
we must be estranging
you must be estranging
they must be estranging	I must have estranged
you must have estranged
he must have estranged
we must have estranged
you must have estranged
they must have estranged	I must have been estranging
you must have been estranging
he must have been estranging
we must have been estranging
you must have been estranging
they must have been estranging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't estrange
you mustn't estrange
he mustn't estrange
we mustn't estrange
you mustn't estrange
they mustn't estrange 	I mustn't be estranging
you mustn't be estranging
he mustn't be estranging
we mustn't be estranging
you mustn't be estranging
they mustn't be estranging	I mustn't have estranged
you mustn't have estranged
he mustn't have estranged
we mustn't have estranged
you mustn't have estranged
they mustn't have estranged	I mustn't have been estranging
you mustn't have been estranging
he mustn't have been estranging
we mustn't have been estranging
you mustn't have been estranging
they mustn't have been estranging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I estrange?
must you estrange?
must he estrange?
must we estrange?
must you estrange?
must they estrange? 	must I be estranging?
must you be estranging?
must he be estranging?
must we be estranging?
must you be estranging?
must they be estranging? 	must I have estranged?
must you have estranged?
must he have estranged?
must we have estranged?
must you have estranged?
must they have estranged? 	must I have been estranging?
must you have been estranging?
must he have been estranging?
must we have been estranging?
must you have been estranging?
must they have been estranging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I estrange?
mustn't you estrange?
mustn't he estrange?
mustn't we estrange?
mustn't you estrange?
mustn't they estrange? 	mustn't I be estranging?
mustn't you be estranging?
mustn't he be estranging?
mustn't we be estranging?
mustn't you be estranging?
mustn't they be estranging? 	mustn't I have estranged?
mustn't you have estranged?
mustn't he have estranged?
mustn't we have estranged?
mustn't you have estranged?
mustn't they have estranged? 	mustn't I have been estranging?
mustn't you have been estranging?
mustn't he have been estranging?
mustn't we have been estranging?
mustn't you have been estranging?
mustn't they have been estranging?