must bewail
Regular verb: bewail - bewailed- bewailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must bewail
you must bewail
he must bewail
we must bewail
you must bewail
they must bewail 	I must be bewailing
you must be bewailing
he must be bewailing
we must be bewailing
you must be bewailing
they must be bewailing	I must have bewailed
you must have bewailed
he must have bewailed
we must have bewailed
you must have bewailed
they must have bewailed	I must have been bewailing
you must have been bewailing
he must have been bewailing
we must have been bewailing
you must have been bewailing
they must have been bewailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't bewail
you mustn't bewail
he mustn't bewail
we mustn't bewail
you mustn't bewail
they mustn't bewail 	I mustn't be bewailing
you mustn't be bewailing
he mustn't be bewailing
we mustn't be bewailing
you mustn't be bewailing
they mustn't be bewailing	I mustn't have bewailed
you mustn't have bewailed
he mustn't have bewailed
we mustn't have bewailed
you mustn't have bewailed
they mustn't have bewailed	I mustn't have been bewailing
you mustn't have been bewailing
he mustn't have been bewailing
we mustn't have been bewailing
you mustn't have been bewailing
they mustn't have been bewailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I bewail?
must you bewail?
must he bewail?
must we bewail?
must you bewail?
must they bewail? 	must I be bewailing?
must you be bewailing?
must he be bewailing?
must we be bewailing?
must you be bewailing?
must they be bewailing? 	must I have bewailed?
must you have bewailed?
must he have bewailed?
must we have bewailed?
must you have bewailed?
must they have bewailed? 	must I have been bewailing?
must you have been bewailing?
must he have been bewailing?
must we have been bewailing?
must you have been bewailing?
must they have been bewailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I bewail?
mustn't you bewail?
mustn't he bewail?
mustn't we bewail?
mustn't you bewail?
mustn't they bewail? 	mustn't I be bewailing?
mustn't you be bewailing?
mustn't he be bewailing?
mustn't we be bewailing?
mustn't you be bewailing?
mustn't they be bewailing? 	mustn't I have bewailed?
mustn't you have bewailed?
mustn't he have bewailed?
mustn't we have bewailed?
mustn't you have bewailed?
mustn't they have bewailed? 	mustn't I have been bewailing?
mustn't you have been bewailing?
mustn't he have been bewailing?
mustn't we have been bewailing?
mustn't you have been bewailing?
mustn't they have been bewailing?