could smart
Verbo regular: smart - smarted- smarted

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

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not smart
you could not smart
he could not smart
we could not smart
you could not smart
they could not smart 	I could not be smarting
you could not be smarting
he could not be smarting
we could not be smarting
you could not be smarting
they could not be smarting	I could not have smarted
you could not have smarted
he could not have smarted
we could not have smarted
you could not have smarted
they could not have smarted	I could not have been smarting
you could not have been smarting
he could not have been smarting
we could not have been smarting
you could not have been smarting
they could not have been smarting	

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

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