must stone
Verbo regular: stone - stoned- stoned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must stone
you must stone
he must stone
we must stone
you must stone
they must stone 	I must be stoning
you must be stoning
he must be stoning
we must be stoning
you must be stoning
they must be stoning	I must have stoned
you must have stoned
he must have stoned
we must have stoned
you must have stoned
they must have stoned	I must have been stoning
you must have been stoning
he must have been stoning
we must have been stoning
you must have been stoning
they must have been stoning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't stone
you mustn't stone
he mustn't stone
we mustn't stone
you mustn't stone
they mustn't stone 	I mustn't be stoning
you mustn't be stoning
he mustn't be stoning
we mustn't be stoning
you mustn't be stoning
they mustn't be stoning	I mustn't have stoned
you mustn't have stoned
he mustn't have stoned
we mustn't have stoned
you mustn't have stoned
they mustn't have stoned	I mustn't have been stoning
you mustn't have been stoning
he mustn't have been stoning
we mustn't have been stoning
you mustn't have been stoning
they mustn't have been stoning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I stone?
must you stone?
must he stone?
must we stone?
must you stone?
must they stone? 	must I be stoning?
must you be stoning?
must he be stoning?
must we be stoning?
must you be stoning?
must they be stoning? 	must I have stoned?
must you have stoned?
must he have stoned?
must we have stoned?
must you have stoned?
must they have stoned? 	must I have been stoning?
must you have been stoning?
must he have been stoning?
must we have been stoning?
must you have been stoning?
must they have been stoning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I stone?
mustn't you stone?
mustn't he stone?
mustn't we stone?
mustn't you stone?
mustn't they stone? 	mustn't I be stoning?
mustn't you be stoning?
mustn't he be stoning?
mustn't we be stoning?
mustn't you be stoning?
mustn't they be stoning? 	mustn't I have stoned?
mustn't you have stoned?
mustn't he have stoned?
mustn't we have stoned?
mustn't you have stoned?
mustn't they have stoned? 	mustn't I have been stoning?
mustn't you have been stoning?
mustn't he have been stoning?
mustn't we have been stoning?
mustn't you have been stoning?
mustn't they have been stoning?