must nigh
Verbo regular: nigh - nighed- nighed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must nigh
you must nigh
she must nigh
we must nigh
you must nigh
they must nigh 	I must be nighing
you must be nighing
she must be nighing
we must be nighing
you must be nighing
they must be nighing	I must have nighed
you must have nighed
she must have nighed
we must have nighed
you must have nighed
they must have nighed	I must have been nighing
you must have been nighing
she must have been nighing
we must have been nighing
you must have been nighing
they must have been nighing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't nigh
you mustn't nigh
she mustn't nigh
we mustn't nigh
you mustn't nigh
they mustn't nigh 	I mustn't be nighing
you mustn't be nighing
she mustn't be nighing
we mustn't be nighing
you mustn't be nighing
they mustn't be nighing	I mustn't have nighed
you mustn't have nighed
she mustn't have nighed
we mustn't have nighed
you mustn't have nighed
they mustn't have nighed	I mustn't have been nighing
you mustn't have been nighing
she mustn't have been nighing
we mustn't have been nighing
you mustn't have been nighing
they mustn't have been nighing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I nigh?
must you nigh?
must she nigh?
must we nigh?
must you nigh?
must they nigh? 	must I be nighing?
must you be nighing?
must she be nighing?
must we be nighing?
must you be nighing?
must they be nighing? 	must I have nighed?
must you have nighed?
must she have nighed?
must we have nighed?
must you have nighed?
must they have nighed? 	must I have been nighing?
must you have been nighing?
must she have been nighing?
must we have been nighing?
must you have been nighing?
must they have been nighing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I nigh?
mustn't you nigh?
mustn't she nigh?
mustn't we nigh?
mustn't you nigh?
mustn't they nigh? 	mustn't I be nighing?
mustn't you be nighing?
mustn't she be nighing?
mustn't we be nighing?
mustn't you be nighing?
mustn't they be nighing? 	mustn't I have nighed?
mustn't you have nighed?
mustn't she have nighed?
mustn't we have nighed?
mustn't you have nighed?
mustn't they have nighed? 	mustn't I have been nighing?
mustn't you have been nighing?
mustn't she have been nighing?
mustn't we have been nighing?
mustn't you have been nighing?
mustn't they have been nighing?