I could bury you could bury he could bury we could bury you could bury they could bury
Forma con V-ing
I could be burying you could be burying he could be burying we could be burying you could be burying they could be burying
Perfecto
I could have buried you could have buried he could have buried we could have buried you could have buried they could have buried
Perfecto con V-ing
I could have been burying you could have been burying he could have been burying we could have been burying you could have been burying they could have been burying
Negación
Forma simple
I could not bury you could not bury he could not bury we could not bury you could not bury they could not bury
Forma con V-ing
I could not be burying you could not be burying he could not be burying we could not be burying you could not be burying they could not be burying
Perfecto
I could not have buried you could not have buried he could not have buried we could not have buried you could not have buried they could not have buried
Perfecto con V-ing
I could not have been burying you could not have been burying he could not have been burying we could not have been burying you could not have been burying they could not have been burying
Forma interrogativa
Forma simple
could I bury? could you bury? could he bury? could we bury? could you bury? could they bury?
Forma con V-ing
could I be burying? could you be burying? could he be burying? could we be burying? could you be burying? could they be burying?
Perfecto
could I have buried? could you have buried? could he have buried? could we have buried? could you have buried? could they have buried?
Perfecto con V-ing
could I have been burying? could you have been burying? could he have been burying? could we have been burying? could you have been burying? could they have been burying?
Forma interro-negativa
Forma simple
could I not bury? could you not bury? could he not bury? could we not bury? could you not bury? could they not bury?
Forma con V-ing
could I not be burying? could you not be burying? could he not be burying? could we not be burying? could you not be burying? could they not be burying?
Perfecto
could I not have buried? could you not have buried? could he not have buried? could we not have buried? could you not have buried? could they not have buried?
Perfecto con V-ing
could I not have been burying? could you not have been burying? could he not have been burying? could we not have been burying? could you not have been burying? could they not have been burying?