must plague
Verbo regular: plague - plagued- plagued

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must plague
you must plague
he must plague
we must plague
you must plague
they must plague 	I must be plaguing
you must be plaguing
he must be plaguing
we must be plaguing
you must be plaguing
they must be plaguing	I must have plagued
you must have plagued
he must have plagued
we must have plagued
you must have plagued
they must have plagued	I must have been plaguing
you must have been plaguing
he must have been plaguing
we must have been plaguing
you must have been plaguing
they must have been plaguing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't plague
you mustn't plague
he mustn't plague
we mustn't plague
you mustn't plague
they mustn't plague 	I mustn't be plaguing
you mustn't be plaguing
he mustn't be plaguing
we mustn't be plaguing
you mustn't be plaguing
they mustn't be plaguing	I mustn't have plagued
you mustn't have plagued
he mustn't have plagued
we mustn't have plagued
you mustn't have plagued
they mustn't have plagued	I mustn't have been plaguing
you mustn't have been plaguing
he mustn't have been plaguing
we mustn't have been plaguing
you mustn't have been plaguing
they mustn't have been plaguing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I plague?
must you plague?
must he plague?
must we plague?
must you plague?
must they plague? 	must I be plaguing?
must you be plaguing?
must he be plaguing?
must we be plaguing?
must you be plaguing?
must they be plaguing? 	must I have plagued?
must you have plagued?
must he have plagued?
must we have plagued?
must you have plagued?
must they have plagued? 	must I have been plaguing?
must you have been plaguing?
must he have been plaguing?
must we have been plaguing?
must you have been plaguing?
must they have been plaguing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I plague?
mustn't you plague?
mustn't he plague?
mustn't we plague?
mustn't you plague?
mustn't they plague? 	mustn't I be plaguing?
mustn't you be plaguing?
mustn't he be plaguing?
mustn't we be plaguing?
mustn't you be plaguing?
mustn't they be plaguing? 	mustn't I have plagued?
mustn't you have plagued?
mustn't he have plagued?
mustn't we have plagued?
mustn't you have plagued?
mustn't they have plagued? 	mustn't I have been plaguing?
mustn't you have been plaguing?
mustn't he have been plaguing?
mustn't we have been plaguing?
mustn't you have been plaguing?
mustn't they have been plaguing?