must sheave
Verbo regular: sheave - sheaved- sheaved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must sheave
you must sheave
he must sheave
we must sheave
you must sheave
they must sheave 	I must be sheaving
you must be sheaving
he must be sheaving
we must be sheaving
you must be sheaving
they must be sheaving	I must have sheaved
you must have sheaved
he must have sheaved
we must have sheaved
you must have sheaved
they must have sheaved	I must have been sheaving
you must have been sheaving
he must have been sheaving
we must have been sheaving
you must have been sheaving
they must have been sheaving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't sheave
you mustn't sheave
he mustn't sheave
we mustn't sheave
you mustn't sheave
they mustn't sheave 	I mustn't be sheaving
you mustn't be sheaving
he mustn't be sheaving
we mustn't be sheaving
you mustn't be sheaving
they mustn't be sheaving	I mustn't have sheaved
you mustn't have sheaved
he mustn't have sheaved
we mustn't have sheaved
you mustn't have sheaved
they mustn't have sheaved	I mustn't have been sheaving
you mustn't have been sheaving
he mustn't have been sheaving
we mustn't have been sheaving
you mustn't have been sheaving
they mustn't have been sheaving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I sheave?
must you sheave?
must he sheave?
must we sheave?
must you sheave?
must they sheave? 	must I be sheaving?
must you be sheaving?
must he be sheaving?
must we be sheaving?
must you be sheaving?
must they be sheaving? 	must I have sheaved?
must you have sheaved?
must he have sheaved?
must we have sheaved?
must you have sheaved?
must they have sheaved? 	must I have been sheaving?
must you have been sheaving?
must he have been sheaving?
must we have been sheaving?
must you have been sheaving?
must they have been sheaving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I sheave?
mustn't you sheave?
mustn't he sheave?
mustn't we sheave?
mustn't you sheave?
mustn't they sheave? 	mustn't I be sheaving?
mustn't you be sheaving?
mustn't he be sheaving?
mustn't we be sheaving?
mustn't you be sheaving?
mustn't they be sheaving? 	mustn't I have sheaved?
mustn't you have sheaved?
mustn't he have sheaved?
mustn't we have sheaved?
mustn't you have sheaved?
mustn't they have sheaved? 	mustn't I have been sheaving?
mustn't you have been sheaving?
mustn't he have been sheaving?
mustn't we have been sheaving?
mustn't you have been sheaving?
mustn't they have been sheaving?