must smart
Verbo regular: smart - smarted- smarted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must smart
you must smart
he must smart
we must smart
you must smart
they must smart 	I must be smarting
you must be smarting
he must be smarting
we must be smarting
you must be smarting
they must be smarting	I must have smarted
you must have smarted
he must have smarted
we must have smarted
you must have smarted
they must have smarted	I must have been smarting
you must have been smarting
he must have been smarting
we must have been smarting
you must have been smarting
they must have been smarting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't smart
you mustn't smart
he mustn't smart
we mustn't smart
you mustn't smart
they mustn't smart 	I mustn't be smarting
you mustn't be smarting
he mustn't be smarting
we mustn't be smarting
you mustn't be smarting
they mustn't be smarting	I mustn't have smarted
you mustn't have smarted
he mustn't have smarted
we mustn't have smarted
you mustn't have smarted
they mustn't have smarted	I mustn't have been smarting
you mustn't have been smarting
he mustn't have been smarting
we mustn't have been smarting
you mustn't have been smarting
they mustn't have been smarting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I smart?
must you smart?
must he smart?
must we smart?
must you smart?
must they smart? 	must I be smarting?
must you be smarting?
must he be smarting?
must we be smarting?
must you be smarting?
must they be smarting? 	must I have smarted?
must you have smarted?
must he have smarted?
must we have smarted?
must you have smarted?
must they have smarted? 	must I have been smarting?
must you have been smarting?
must he have been smarting?
must we have been smarting?
must you have been smarting?
must they have been smarting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I smart?
mustn't you smart?
mustn't he smart?
mustn't we smart?
mustn't you smart?
mustn't they smart? 	mustn't I be smarting?
mustn't you be smarting?
mustn't he be smarting?
mustn't we be smarting?
mustn't you be smarting?
mustn't they be smarting? 	mustn't I have smarted?
mustn't you have smarted?
mustn't he have smarted?
mustn't we have smarted?
mustn't you have smarted?
mustn't they have smarted? 	mustn't I have been smarting?
mustn't you have been smarting?
mustn't he have been smarting?
mustn't we have been smarting?
mustn't you have been smarting?
mustn't they have been smarting?