Verbo regular: mark - marked - marked
Forma simple | Forma con V-ing |
I could mark you could mark she could mark we could mark you could mark they could mark | I could be marking you could be marking she could be marking we could be marking you could be marking they could be marking |
Perfecto | Perfecto con V-ing |
I could have marked you could have marked she could have marked we could have marked you could have marked they could have marked | I could have been marking you could have been marking she could have been marking we could have been marking you could have been marking they could have been marking |
Forma simple | Forma con V-ing |
I couldn't mark you couldn't mark she couldn't mark we couldn't mark you couldn't mark they couldn't mark | I couldn't be marking you couldn't be marking she couldn't be marking we couldn't be marking you couldn't be marking they couldn't be marking |
Perfecto | Perfecto con V-ing |
I couldn't have marked you couldn't have marked she couldn't have marked we couldn't have marked you couldn't have marked they couldn't have marked | I couldn't have been marking you couldn't have been marking she couldn't have been marking we couldn't have been marking you couldn't have been marking they couldn't have been marking |
Forma simple | Forma con V-ing |
could I mark? could you mark? could she mark? could we mark? could you mark? could they mark? | could I be marking? could you be marking? could she be marking? could we be marking? could you be marking? could they be marking? |
Perfecto | Perfecto con V-ing |
could I have marked? could you have marked? could she have marked? could we have marked? could you have marked? could they have marked? | could I have been marking? could you have been marking? could she have been marking? could we have been marking? could you have been marking? could they have been marking? |
Forma simple | Forma con V-ing |
couldn't I mark? couldn't you mark? couldn't she mark? couldn't we mark? couldn't you mark? couldn't they mark? | couldn't I be marking? couldn't you be marking? couldn't she be marking? couldn't we be marking? couldn't you be marking? couldn't they be marking? |
Perfecto | Perfecto con V-ing |
couldn't I have marked? couldn't you have marked? couldn't she have marked? couldn't we have marked? couldn't you have marked? couldn't they have marked? | couldn't I have been marking? couldn't you have been marking? couldn't she have been marking? couldn't we have been marking? couldn't you have been marking? couldn't they have been marking? |