must furnish
Verbo regular: furnish - furnished- furnished

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must furnish
you must furnish
he must furnish
we must furnish
you must furnish
they must furnish 	I must be furnishing
you must be furnishing
he must be furnishing
we must be furnishing
you must be furnishing
they must be furnishing	I must have furnished
you must have furnished
he must have furnished
we must have furnished
you must have furnished
they must have furnished	I must have been furnishing
you must have been furnishing
he must have been furnishing
we must have been furnishing
you must have been furnishing
they must have been furnishing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't furnish
you mustn't furnish
he mustn't furnish
we mustn't furnish
you mustn't furnish
they mustn't furnish 	I mustn't be furnishing
you mustn't be furnishing
he mustn't be furnishing
we mustn't be furnishing
you mustn't be furnishing
they mustn't be furnishing	I mustn't have furnished
you mustn't have furnished
he mustn't have furnished
we mustn't have furnished
you mustn't have furnished
they mustn't have furnished	I mustn't have been furnishing
you mustn't have been furnishing
he mustn't have been furnishing
we mustn't have been furnishing
you mustn't have been furnishing
they mustn't have been furnishing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I furnish?
must you furnish?
must he furnish?
must we furnish?
must you furnish?
must they furnish? 	must I be furnishing?
must you be furnishing?
must he be furnishing?
must we be furnishing?
must you be furnishing?
must they be furnishing? 	must I have furnished?
must you have furnished?
must he have furnished?
must we have furnished?
must you have furnished?
must they have furnished? 	must I have been furnishing?
must you have been furnishing?
must he have been furnishing?
must we have been furnishing?
must you have been furnishing?
must they have been furnishing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I furnish?
mustn't you furnish?
mustn't he furnish?
mustn't we furnish?
mustn't you furnish?
mustn't they furnish? 	mustn't I be furnishing?
mustn't you be furnishing?
mustn't he be furnishing?
mustn't we be furnishing?
mustn't you be furnishing?
mustn't they be furnishing? 	mustn't I have furnished?
mustn't you have furnished?
mustn't he have furnished?
mustn't we have furnished?
mustn't you have furnished?
mustn't they have furnished? 	mustn't I have been furnishing?
mustn't you have been furnishing?
mustn't he have been furnishing?
mustn't we have been furnishing?
mustn't you have been furnishing?
mustn't they have been furnishing?