I could qualify you could qualify he could qualify we could qualify you could qualify they could qualify
Forma con V-ing
I could be qualifying you could be qualifying he could be qualifying we could be qualifying you could be qualifying they could be qualifying
Perfecto
I could have qualified you could have qualified he could have qualified we could have qualified you could have qualified they could have qualified
Perfecto con V-ing
I could have been qualifying you could have been qualifying he could have been qualifying we could have been qualifying you could have been qualifying they could have been qualifying
Negación
Forma simple
I couldn't qualify you couldn't qualify he couldn't qualify we couldn't qualify you couldn't qualify they couldn't qualify
Forma con V-ing
I couldn't be qualifying you couldn't be qualifying he couldn't be qualifying we couldn't be qualifying you couldn't be qualifying they couldn't be qualifying
Perfecto
I couldn't have qualified you couldn't have qualified he couldn't have qualified we couldn't have qualified you couldn't have qualified they couldn't have qualified
Perfecto con V-ing
I couldn't have been qualifying you couldn't have been qualifying he couldn't have been qualifying we couldn't have been qualifying you couldn't have been qualifying they couldn't have been qualifying
Forma interrogativa
Forma simple
could I qualify? could you qualify? could he qualify? could we qualify? could you qualify? could they qualify?
Forma con V-ing
could I be qualifying? could you be qualifying? could he be qualifying? could we be qualifying? could you be qualifying? could they be qualifying?
Perfecto
could I have qualified? could you have qualified? could he have qualified? could we have qualified? could you have qualified? could they have qualified?
Perfecto con V-ing
could I have been qualifying? could you have been qualifying? could he have been qualifying? could we have been qualifying? could you have been qualifying? could they have been qualifying?
Forma interro-negativa
Forma simple
couldn't I qualify? couldn't you qualify? couldn't he qualify? couldn't we qualify? couldn't you qualify? couldn't they qualify?
Forma con V-ing
couldn't I be qualifying? couldn't you be qualifying? couldn't he be qualifying? couldn't we be qualifying? couldn't you be qualifying? couldn't they be qualifying?
Perfecto
couldn't I have qualified? couldn't you have qualified? couldn't he have qualified? couldn't we have qualified? couldn't you have qualified? couldn't they have qualified?
Perfecto con V-ing
couldn't I have been qualifying? couldn't you have been qualifying? couldn't he have been qualifying? couldn't we have been qualifying? couldn't you have been qualifying? couldn't they have been qualifying?