must cache
Verbo regular: cache - cached- cached

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must cache
you must cache
he must cache
we must cache
you must cache
they must cache 	I must be caching
you must be caching
he must be caching
we must be caching
you must be caching
they must be caching	I must have cached
you must have cached
he must have cached
we must have cached
you must have cached
they must have cached	I must have been caching
you must have been caching
he must have been caching
we must have been caching
you must have been caching
they must have been caching	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't cache
you mustn't cache
he mustn't cache
we mustn't cache
you mustn't cache
they mustn't cache 	I mustn't be caching
you mustn't be caching
he mustn't be caching
we mustn't be caching
you mustn't be caching
they mustn't be caching	I mustn't have cached
you mustn't have cached
he mustn't have cached
we mustn't have cached
you mustn't have cached
they mustn't have cached	I mustn't have been caching
you mustn't have been caching
he mustn't have been caching
we mustn't have been caching
you mustn't have been caching
they mustn't have been caching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I cache?
must you cache?
must he cache?
must we cache?
must you cache?
must they cache? 	must I be caching?
must you be caching?
must he be caching?
must we be caching?
must you be caching?
must they be caching? 	must I have cached?
must you have cached?
must he have cached?
must we have cached?
must you have cached?
must they have cached? 	must I have been caching?
must you have been caching?
must he have been caching?
must we have been caching?
must you have been caching?
must they have been caching? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I cache?
mustn't you cache?
mustn't he cache?
mustn't we cache?
mustn't you cache?
mustn't they cache? 	mustn't I be caching?
mustn't you be caching?
mustn't he be caching?
mustn't we be caching?
mustn't you be caching?
mustn't they be caching? 	mustn't I have cached?
mustn't you have cached?
mustn't he have cached?
mustn't we have cached?
mustn't you have cached?
mustn't they have cached? 	mustn't I have been caching?
mustn't you have been caching?
mustn't he have been caching?
mustn't we have been caching?
mustn't you have been caching?
mustn't they have been caching?