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 couldn't falter you couldn't falter she couldn't falter we couldn't falter you couldn't falter they couldn't falter
Forma con V-ing
I couldn't be faltering you couldn't be faltering she couldn't be faltering we couldn't be faltering you couldn't be faltering they couldn't be faltering
Perfecto
I couldn't have faltered you couldn't have faltered she couldn't have faltered we couldn't have faltered you couldn't have faltered they couldn't have faltered
Perfecto con V-ing
I couldn't have been faltering you couldn't have been faltering she couldn't have been faltering we couldn't have been faltering you couldn't have been faltering they couldn't 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
couldn't I falter? couldn't you falter? couldn't she falter? couldn't we falter? couldn't you falter? couldn't they falter?
Forma con V-ing
couldn't I be faltering? couldn't you be faltering? couldn't she be faltering? couldn't we be faltering? couldn't you be faltering? couldn't they be faltering?
Perfecto
couldn't I have faltered? couldn't you have faltered? couldn't she have faltered? couldn't we have faltered? couldn't you have faltered? couldn't they have faltered?
Perfecto con V-ing
couldn't I have been faltering? couldn't you have been faltering? couldn't she have been faltering? couldn't we have been faltering? couldn't you have been faltering? couldn't they have been faltering?