Verbo regular: sift - sifted - sifted
Forma simple | Forma com V-ing |
I could sift you could sift she could sift we could sift you could sift they could sift | I could be sifting you could be sifting she could be sifting we could be sifting you could be sifting they could be sifting |
Perfeito | Perfeito com V-ing |
I could have sifted you could have sifted she could have sifted we could have sifted you could have sifted they could have sifted | I could have been sifting you could have been sifting she could have been sifting we could have been sifting you could have been sifting they could have been sifting |
Forma simple | Forma com V-ing |
I could not sift you could not sift she could not sift we could not sift you could not sift they could not sift | I could not be sifting you could not be sifting she could not be sifting we could not be sifting you could not be sifting they could not be sifting |
Perfeito | Perfeito com V-ing |
I could not have sifted you could not have sifted she could not have sifted we could not have sifted you could not have sifted they could not have sifted | I could not have been sifting you could not have been sifting she could not have been sifting we could not have been sifting you could not have been sifting they could not have been sifting |
Forma simple | Forma com V-ing |
could I sift? could you sift? could she sift? could we sift? could you sift? could they sift? | could I be sifting? could you be sifting? could she be sifting? could we be sifting? could you be sifting? could they be sifting? |
Perfeito | Perfeito com V-ing |
could I have sifted? could you have sifted? could she have sifted? could we have sifted? could you have sifted? could they have sifted? | could I have been sifting? could you have been sifting? could she have been sifting? could we have been sifting? could you have been sifting? could they have been sifting? |
Forma simple | Forma com V-ing |
could I not sift? could you not sift? could she not sift? could we not sift? could you not sift? could they not sift? | could I not be sifting? could you not be sifting? could she not be sifting? could we not be sifting? could you not be sifting? could they not be sifting? |
Perfeito | Perfeito com V-ing |
could I not have sifted? could you not have sifted? could she not have sifted? could we not have sifted? could you not have sifted? could they not have sifted? | could I not have been sifting? could you not have been sifting? could she not have been sifting? could we not have been sifting? could you not have been sifting? could they not have been sifting? |