must relax
Regular verb: relax - relaxed- relaxed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must relax
you must relax
she must relax
we must relax
you must relax
they must relax 	I must be relaxing
you must be relaxing
she must be relaxing
we must be relaxing
you must be relaxing
they must be relaxing	I must have relaxed
you must have relaxed
she must have relaxed
we must have relaxed
you must have relaxed
they must have relaxed	I must have been relaxing
you must have been relaxing
she must have been relaxing
we must have been relaxing
you must have been relaxing
they must have been relaxing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't relax
you mustn't relax
she mustn't relax
we mustn't relax
you mustn't relax
they mustn't relax 	I mustn't be relaxing
you mustn't be relaxing
she mustn't be relaxing
we mustn't be relaxing
you mustn't be relaxing
they mustn't be relaxing	I mustn't have relaxed
you mustn't have relaxed
she mustn't have relaxed
we mustn't have relaxed
you mustn't have relaxed
they mustn't have relaxed	I mustn't have been relaxing
you mustn't have been relaxing
she mustn't have been relaxing
we mustn't have been relaxing
you mustn't have been relaxing
they mustn't have been relaxing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I relax?
must you relax?
must she relax?
must we relax?
must you relax?
must they relax? 	must I be relaxing?
must you be relaxing?
must she be relaxing?
must we be relaxing?
must you be relaxing?
must they be relaxing? 	must I have relaxed?
must you have relaxed?
must she have relaxed?
must we have relaxed?
must you have relaxed?
must they have relaxed? 	must I have been relaxing?
must you have been relaxing?
must she have been relaxing?
must we have been relaxing?
must you have been relaxing?
must they have been relaxing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I relax?
mustn't you relax?
mustn't she relax?
mustn't we relax?
mustn't you relax?
mustn't they relax? 	mustn't I be relaxing?
mustn't you be relaxing?
mustn't she be relaxing?
mustn't we be relaxing?
mustn't you be relaxing?
mustn't they be relaxing? 	mustn't I have relaxed?
mustn't you have relaxed?
mustn't she have relaxed?
mustn't we have relaxed?
mustn't you have relaxed?
mustn't they have relaxed? 	mustn't I have been relaxing?
mustn't you have been relaxing?
mustn't she have been relaxing?
mustn't we have been relaxing?
mustn't you have been relaxing?
mustn't they have been relaxing?