I can stammer you can stammer she can stammer we can stammer you can stammer they can stammer
Forma con V-ing
I can be stammering you can be stammering she can be stammering we can be stammering you can be stammering they can be stammering
Perfecto
I can have stammered you can have stammered she can have stammered we can have stammered you can have stammered they can have stammered
Perfecto con V-ing
I can have been stammering you can have been stammering she can have been stammering we can have been stammering you can have been stammering they can have been stammering
Negación
Forma simple
I can't stammer you can't stammer she can't stammer we can't stammer you can't stammer they can't stammer
Forma con V-ing
I can't be stammering you can't be stammering she can't be stammering we can't be stammering you can't be stammering they can't be stammering
Perfecto
I can't have stammered you can't have stammered she can't have stammered we can't have stammered you can't have stammered they can't have stammered
Perfecto con V-ing
I can't have been stammering you can't have been stammering she can't have been stammering we can't have been stammering you can't have been stammering they can't have been stammering
Forma interrogativa
Forma simple
can I stammer? can you stammer? can she stammer? can we stammer? can you stammer? can they stammer?
Forma con V-ing
can I be stammering? can you be stammering? can she be stammering? can we be stammering? can you be stammering? can they be stammering?
Perfecto
can I have stammered? can you have stammered? can she have stammered? can we have stammered? can you have stammered? can they have stammered?
Perfecto con V-ing
can I have been stammering? can you have been stammering? can she have been stammering? can we have been stammering? can you have been stammering? can they have been stammering?
Forma interro-negativa
Forma simple
can't I stammer? can't you stammer? can't she stammer? can't we stammer? can't you stammer? can't they stammer?
Forma con V-ing
can't I be stammering? can't you be stammering? can't she be stammering? can't we be stammering? can't you be stammering? can't they be stammering?
Perfecto
can't I have stammered? can't you have stammered? can't she have stammered? can't we have stammered? can't you have stammered? can't they have stammered?
Perfecto con V-ing
can't I have been stammering? can't you have been stammering? can't she have been stammering? can't we have been stammering? can't you have been stammering? can't they have been stammering?