Conjugación del verbo inglés COULD MASTER
Verbo regular: master - mastered - mastered
Afirmación
Forma simple
I could masteryou could master
he could master
we could master
you could master
they could master
Forma con V-ing
I could be masteringyou could be mastering
he could be mastering
we could be mastering
you could be mastering
they could be mastering
Perfecto
I could have masteredyou could have mastered
he could have mastered
we could have mastered
you could have mastered
they could have mastered
Perfecto con V-ing
I could have been masteringyou 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
I couldn't masteryou couldn't master
he couldn't master
we couldn't master
you couldn't master
they couldn't master
Forma con V-ing
I couldn't be masteringyou 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
I couldn't have masteredyou couldn't have mastered
he couldn't have mastered
we couldn't have mastered
you couldn't have mastered
they couldn't have mastered
Perfecto con V-ing
I couldn't have been masteringyou 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
could I master?could you master?
could he master?
could we master?
could you master?
could they master?
Forma con V-ing
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
could I have mastered?could you have mastered?
could he have mastered?
could we have mastered?
could you have mastered?
could they have mastered?
Perfecto con V-ing
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
couldn't I master?couldn't you master?
couldn't he master?
couldn't we master?
couldn't you master?
couldn't they master?
Forma con V-ing
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
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?
Perfecto con V-ing
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?