I could grieve you could grieve she could grieve we could grieve you could grieve they could grieve
Forma com V-ing
I could be grieving you could be grieving she could be grieving we could be grieving you could be grieving they could be grieving
Perfeito
I could have grieved you could have grieved she could have grieved we could have grieved you could have grieved they could have grieved
Perfeito com V-ing
I could have been grieving you could have been grieving she could have been grieving we could have been grieving you could have been grieving they could have been grieving
Negação
Forma simple
I could not grieve you could not grieve she could not grieve we could not grieve you could not grieve they could not grieve
Forma com V-ing
I could not be grieving you could not be grieving she could not be grieving we could not be grieving you could not be grieving they could not be grieving
Perfeito
I could not have grieved you could not have grieved she could not have grieved we could not have grieved you could not have grieved they could not have grieved
Perfeito com V-ing
I could not have been grieving you could not have been grieving she could not have been grieving we could not have been grieving you could not have been grieving they could not have been grieving
Forma interrogativa
Forma simple
could I grieve? could you grieve? could she grieve? could we grieve? could you grieve? could they grieve?
Forma com V-ing
could I be grieving? could you be grieving? could she be grieving? could we be grieving? could you be grieving? could they be grieving?
Perfeito
could I have grieved? could you have grieved? could she have grieved? could we have grieved? could you have grieved? could they have grieved?
Perfeito com V-ing
could I have been grieving? could you have been grieving? could she have been grieving? could we have been grieving? could you have been grieving? could they have been grieving?
Forma interro-Negação
Forma simple
could I not grieve? could you not grieve? could she not grieve? could we not grieve? could you not grieve? could they not grieve?
Forma com V-ing
could I not be grieving? could you not be grieving? could she not be grieving? could we not be grieving? could you not be grieving? could they not be grieving?
Perfeito
could I not have grieved? could you not have grieved? could she not have grieved? could we not have grieved? could you not have grieved? could they not have grieved?
Perfeito com V-ing
could I not have been grieving? could you not have been grieving? could she not have been grieving? could we not have been grieving? could you not have been grieving? could they not have been grieving?