must fatigue
Verbo regular: fatigue - fatigued- fatigued

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must fatigue
you must fatigue
he must fatigue
we must fatigue
you must fatigue
they must fatigue 	I must be fatiguing
you must be fatiguing
he must be fatiguing
we must be fatiguing
you must be fatiguing
they must be fatiguing	I must have fatigued
you must have fatigued
he must have fatigued
we must have fatigued
you must have fatigued
they must have fatigued	I must have been fatiguing
you must have been fatiguing
he must have been fatiguing
we must have been fatiguing
you must have been fatiguing
they must have been fatiguing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't fatigue
you mustn't fatigue
he mustn't fatigue
we mustn't fatigue
you mustn't fatigue
they mustn't fatigue 	I mustn't be fatiguing
you mustn't be fatiguing
he mustn't be fatiguing
we mustn't be fatiguing
you mustn't be fatiguing
they mustn't be fatiguing	I mustn't have fatigued
you mustn't have fatigued
he mustn't have fatigued
we mustn't have fatigued
you mustn't have fatigued
they mustn't have fatigued	I mustn't have been fatiguing
you mustn't have been fatiguing
he mustn't have been fatiguing
we mustn't have been fatiguing
you mustn't have been fatiguing
they mustn't have been fatiguing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I fatigue?
must you fatigue?
must he fatigue?
must we fatigue?
must you fatigue?
must they fatigue? 	must I be fatiguing?
must you be fatiguing?
must he be fatiguing?
must we be fatiguing?
must you be fatiguing?
must they be fatiguing? 	must I have fatigued?
must you have fatigued?
must he have fatigued?
must we have fatigued?
must you have fatigued?
must they have fatigued? 	must I have been fatiguing?
must you have been fatiguing?
must he have been fatiguing?
must we have been fatiguing?
must you have been fatiguing?
must they have been fatiguing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I fatigue?
mustn't you fatigue?
mustn't he fatigue?
mustn't we fatigue?
mustn't you fatigue?
mustn't they fatigue? 	mustn't I be fatiguing?
mustn't you be fatiguing?
mustn't he be fatiguing?
mustn't we be fatiguing?
mustn't you be fatiguing?
mustn't they be fatiguing? 	mustn't I have fatigued?
mustn't you have fatigued?
mustn't he have fatigued?
mustn't we have fatigued?
mustn't you have fatigued?
mustn't they have fatigued? 	mustn't I have been fatiguing?
mustn't you have been fatiguing?
mustn't he have been fatiguing?
mustn't we have been fatiguing?
mustn't you have been fatiguing?
mustn't they have been fatiguing?