I could aver you could aver he could aver we could aver you could aver they could aver
Forma com V-ing
I could be averring you could be averring he could be averring we could be averring you could be averring they could be averring
Perfeito
I could have averred you could have averred he could have averred we could have averred you could have averred they could have averred
Perfeito com V-ing
I could have been averring you could have been averring he could have been averring we could have been averring you could have been averring they could have been averring
Negação
Forma simple
I couldn't aver you couldn't aver he couldn't aver we couldn't aver you couldn't aver they couldn't aver
Forma com V-ing
I couldn't be averring you couldn't be averring he couldn't be averring we couldn't be averring you couldn't be averring they couldn't be averring
Perfeito
I couldn't have averred you couldn't have averred he couldn't have averred we couldn't have averred you couldn't have averred they couldn't have averred
Perfeito com V-ing
I couldn't have been averring you couldn't have been averring he couldn't have been averring we couldn't have been averring you couldn't have been averring they couldn't have been averring
Forma interrogativa
Forma simple
could I aver? could you aver? could he aver? could we aver? could you aver? could they aver?
Forma com V-ing
could I be averring? could you be averring? could he be averring? could we be averring? could you be averring? could they be averring?
Perfeito
could I have averred? could you have averred? could he have averred? could we have averred? could you have averred? could they have averred?
Perfeito com V-ing
could I have been averring? could you have been averring? could he have been averring? could we have been averring? could you have been averring? could they have been averring?
Forma interro-Negação
Forma simple
couldn't I aver? couldn't you aver? couldn't he aver? couldn't we aver? couldn't you aver? couldn't they aver?
Forma com V-ing
couldn't I be averring? couldn't you be averring? couldn't he be averring? couldn't we be averring? couldn't you be averring? couldn't they be averring?
Perfeito
couldn't I have averred? couldn't you have averred? couldn't he have averred? couldn't we have averred? couldn't you have averred? couldn't they have averred?
Perfeito com V-ing
couldn't I have been averring? couldn't you have been averring? couldn't he have been averring? couldn't we have been averring? couldn't you have been averring? couldn't they have been averring?