must sheet
Verbo regular: sheet - sheeted- sheeted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must sheet
you must sheet
he must sheet
we must sheet
you must sheet
they must sheet 	I must be sheeting
you must be sheeting
he must be sheeting
we must be sheeting
you must be sheeting
they must be sheeting	I must have sheeted
you must have sheeted
he must have sheeted
we must have sheeted
you must have sheeted
they must have sheeted	I must have been sheeting
you must have been sheeting
he must have been sheeting
we must have been sheeting
you must have been sheeting
they must have been sheeting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't sheet
you mustn't sheet
he mustn't sheet
we mustn't sheet
you mustn't sheet
they mustn't sheet 	I mustn't be sheeting
you mustn't be sheeting
he mustn't be sheeting
we mustn't be sheeting
you mustn't be sheeting
they mustn't be sheeting	I mustn't have sheeted
you mustn't have sheeted
he mustn't have sheeted
we mustn't have sheeted
you mustn't have sheeted
they mustn't have sheeted	I mustn't have been sheeting
you mustn't have been sheeting
he mustn't have been sheeting
we mustn't have been sheeting
you mustn't have been sheeting
they mustn't have been sheeting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I sheet?
must you sheet?
must he sheet?
must we sheet?
must you sheet?
must they sheet? 	must I be sheeting?
must you be sheeting?
must he be sheeting?
must we be sheeting?
must you be sheeting?
must they be sheeting? 	must I have sheeted?
must you have sheeted?
must he have sheeted?
must we have sheeted?
must you have sheeted?
must they have sheeted? 	must I have been sheeting?
must you have been sheeting?
must he have been sheeting?
must we have been sheeting?
must you have been sheeting?
must they have been sheeting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I sheet?
mustn't you sheet?
mustn't he sheet?
mustn't we sheet?
mustn't you sheet?
mustn't they sheet? 	mustn't I be sheeting?
mustn't you be sheeting?
mustn't he be sheeting?
mustn't we be sheeting?
mustn't you be sheeting?
mustn't they be sheeting? 	mustn't I have sheeted?
mustn't you have sheeted?
mustn't he have sheeted?
mustn't we have sheeted?
mustn't you have sheeted?
mustn't they have sheeted? 	mustn't I have been sheeting?
mustn't you have been sheeting?
mustn't he have been sheeting?
mustn't we have been sheeting?
mustn't you have been sheeting?
mustn't they have been sheeting?