Conjugación del verbo inglés COULD GRADE
Verbo regular: grade - graded - graded
Afirmación
Forma simple
I could gradeyou could grade
he could grade
we could grade
you could grade
they could grade
Forma con V-ing
I could be gradingyou could be grading
he could be grading
we could be grading
you could be grading
they could be grading
Perfecto
I could have gradedyou could have graded
he could have graded
we could have graded
you could have graded
they could have graded
Perfecto con V-ing
I could have been gradingyou could have been grading
he could have been grading
we could have been grading
you could have been grading
they could have been grading
Negación
Forma simple
I couldn't gradeyou couldn't grade
he couldn't grade
we couldn't grade
you couldn't grade
they couldn't grade
Forma con V-ing
I couldn't be gradingyou couldn't be grading
he couldn't be grading
we couldn't be grading
you couldn't be grading
they couldn't be grading
Perfecto
I couldn't have gradedyou couldn't have graded
he couldn't have graded
we couldn't have graded
you couldn't have graded
they couldn't have graded
Perfecto con V-ing
I couldn't have been gradingyou couldn't have been grading
he couldn't have been grading
we couldn't have been grading
you couldn't have been grading
they couldn't have been grading
Forma interrogativa
Forma simple
could I grade?could you grade?
could he grade?
could we grade?
could you grade?
could they grade?
Forma con V-ing
could I be grading?could you be grading?
could he be grading?
could we be grading?
could you be grading?
could they be grading?
Perfecto
could I have graded?could you have graded?
could he have graded?
could we have graded?
could you have graded?
could they have graded?
Perfecto con V-ing
could I have been grading?could you have been grading?
could he have been grading?
could we have been grading?
could you have been grading?
could they have been grading?
Forma interro-negativa
Forma simple
couldn't I grade?couldn't you grade?
couldn't he grade?
couldn't we grade?
couldn't you grade?
couldn't they grade?
Forma con V-ing
couldn't I be grading?couldn't you be grading?
couldn't he be grading?
couldn't we be grading?
couldn't you be grading?
couldn't they be grading?
Perfecto
couldn't I have graded?couldn't you have graded?
couldn't he have graded?
couldn't we have graded?
couldn't you have graded?
couldn't they have graded?
Perfecto con V-ing
couldn't I have been grading?couldn't you have been grading?
couldn't he have been grading?
couldn't we have been grading?
couldn't you have been grading?
couldn't they have been grading?