Verbo regular: grade - graded - graded
Forma simple | Forma con V-ing |
I could grade you could grade he could grade we could grade you could grade they could grade | I could be grading you could be grading he could be grading we could be grading you could be grading they could be grading |
Perfecto | Perfecto con V-ing |
I could have graded you could have graded he could have graded we could have graded you could have graded they could have graded | I could have been grading you could have been grading he could have been grading we could have been grading you could have been grading they could have been grading |
Forma simple | Forma con V-ing |
I couldn't grade you couldn't grade he couldn't grade we couldn't grade you couldn't grade they couldn't grade | I couldn't be grading you 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 | Perfecto con V-ing |
I couldn't have graded you couldn't have graded he couldn't have graded we couldn't have graded you couldn't have graded they couldn't have graded | I couldn't have been grading you 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 simple | Forma con V-ing |
could I grade? could you grade? could he grade? could we grade? could you grade? could they grade? | 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 | Perfecto con V-ing |
could I have graded? could you have graded? could he have graded? could we have graded? could you have graded? could they have graded? | 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 simple | Forma con V-ing |
couldn't I grade? couldn't you grade? couldn't he grade? couldn't we grade? couldn't you grade? couldn't they grade? | 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 | Perfecto con V-ing |
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? | 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? |