The Conjugator
Conjugación del verbo inglés
COULD MASTER

Verbo regular: master - mastered - mastered

Afirmación

Forma simple

Forma con V-ing

I could master
you could master
he could master
we could master
you could master
they could master
I could be mastering
you could be mastering
he could be mastering
we could be mastering
you could be mastering
they could be mastering

Perfecto

Perfecto con V-ing

I could have mastered
you could have mastered
he could have mastered
we could have mastered
you could have mastered
they could have mastered
I could have been mastering
you could have been mastering
he could have been mastering
we could have been mastering
you could have been mastering
they could have been mastering

Negación

Forma simple

Forma con V-ing

I couldn't master
you couldn't master
he couldn't master
we couldn't master
you couldn't master
they couldn't master
I couldn't be mastering
you couldn't be mastering
he couldn't be mastering
we couldn't be mastering
you couldn't be mastering
they couldn't be mastering

Perfecto

Perfecto con V-ing

I couldn't have mastered
you couldn't have mastered
he couldn't have mastered
we couldn't have mastered
you couldn't have mastered
they couldn't have mastered
I couldn't have been mastering
you couldn't have been mastering
he couldn't have been mastering
we couldn't have been mastering
you couldn't have been mastering
they couldn't have been mastering

Forma interrogativa

Forma simple

Forma con V-ing

could I master?
could you master?
could he master?
could we master?
could you master?
could they master?
could I be mastering?
could you be mastering?
could he be mastering?
could we be mastering?
could you be mastering?
could they be mastering?

Perfecto

Perfecto con V-ing

could I have mastered?
could you have mastered?
could he have mastered?
could we have mastered?
could you have mastered?
could they have mastered?
could I have been mastering?
could you have been mastering?
could he have been mastering?
could we have been mastering?
could you have been mastering?
could they have been mastering?

Forma interro-negativa

Forma simple

Forma con V-ing

couldn't I master?
couldn't you master?
couldn't he master?
couldn't we master?
couldn't you master?
couldn't they master?
couldn't I be mastering?
couldn't you be mastering?
couldn't he be mastering?
couldn't we be mastering?
couldn't you be mastering?
couldn't they be mastering?

Perfecto

Perfecto con V-ing

couldn't I have mastered?
couldn't you have mastered?
couldn't he have mastered?
couldn't we have mastered?
couldn't you have mastered?
couldn't they have mastered?
couldn't I have been mastering?
couldn't you have been mastering?
couldn't he have been mastering?
couldn't we have been mastering?
couldn't you have been mastering?
couldn't they have been mastering?