I could falter you could falter she could falter we could falter you could falter they could falter
Forma con V-ing
I could be faltering you could be faltering she could be faltering we could be faltering you could be faltering they could be faltering
Perfecto
I could have faltered you could have faltered she could have faltered we could have faltered you could have faltered they could have faltered
Perfecto con V-ing
I could have been faltering you could have been faltering she could have been faltering we could have been faltering you could have been faltering they could have been faltering
Negación
Forma simple
I could not falter you could not falter she could not falter we could not falter you could not falter they could not falter
Forma con V-ing
I could not be faltering you could not be faltering she could not be faltering we could not be faltering you could not be faltering they could not be faltering
Perfecto
I could not have faltered you could not have faltered she could not have faltered we could not have faltered you could not have faltered they could not have faltered
Perfecto con V-ing
I could not have been faltering you could not have been faltering she could not have been faltering we could not have been faltering you could not have been faltering they could not have been faltering
Forma interrogativa
Forma simple
could I falter? could you falter? could she falter? could we falter? could you falter? could they falter?
Forma con V-ing
could I be faltering? could you be faltering? could she be faltering? could we be faltering? could you be faltering? could they be faltering?
Perfecto
could I have faltered? could you have faltered? could she have faltered? could we have faltered? could you have faltered? could they have faltered?
Perfecto con V-ing
could I have been faltering? could you have been faltering? could she have been faltering? could we have been faltering? could you have been faltering? could they have been faltering?
Forma interro-negativa
Forma simple
could I not falter? could you not falter? could she not falter? could we not falter? could you not falter? could they not falter?
Forma con V-ing
could I not be faltering? could you not be faltering? could she not be faltering? could we not be faltering? could you not be faltering? could they not be faltering?
Perfecto
could I not have faltered? could you not have faltered? could she not have faltered? could we not have faltered? could you not have faltered? could they not have faltered?
Perfecto con V-ing
could I not have been faltering? could you not have been faltering? could she not have been faltering? could we not have been faltering? could you not have been faltering? could they not have been faltering?