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