I could stutter you could stutter he could stutter we could stutter you could stutter they could stutter
Forma con V-ing
I could be stuttering you could be stuttering he could be stuttering we could be stuttering you could be stuttering they could be stuttering
Perfecto
I could have stuttered you could have stuttered he could have stuttered we could have stuttered you could have stuttered they could have stuttered
Perfecto con V-ing
I could have been stuttering you could have been stuttering he could have been stuttering we could have been stuttering you could have been stuttering they could have been stuttering
Negación
Forma simple
I could not stutter you could not stutter he could not stutter we could not stutter you could not stutter they could not stutter
Forma con V-ing
I could not be stuttering you could not be stuttering he could not be stuttering we could not be stuttering you could not be stuttering they could not be stuttering
Perfecto
I could not have stuttered you could not have stuttered he could not have stuttered we could not have stuttered you could not have stuttered they could not have stuttered
Perfecto con V-ing
I could not have been stuttering you could not have been stuttering he could not have been stuttering we could not have been stuttering you could not have been stuttering they could not have been stuttering
Forma interrogativa
Forma simple
could I stutter? could you stutter? could he stutter? could we stutter? could you stutter? could they stutter?
Forma con V-ing
could I be stuttering? could you be stuttering? could he be stuttering? could we be stuttering? could you be stuttering? could they be stuttering?
Perfecto
could I have stuttered? could you have stuttered? could he have stuttered? could we have stuttered? could you have stuttered? could they have stuttered?
Perfecto con V-ing
could I have been stuttering? could you have been stuttering? could he have been stuttering? could we have been stuttering? could you have been stuttering? could they have been stuttering?
Forma interro-negativa
Forma simple
could I not stutter? could you not stutter? could he not stutter? could we not stutter? could you not stutter? could they not stutter?
Forma con V-ing
could I not be stuttering? could you not be stuttering? could he not be stuttering? could we not be stuttering? could you not be stuttering? could they not be stuttering?
Perfecto
could I not have stuttered? could you not have stuttered? could he not have stuttered? could we not have stuttered? could you not have stuttered? could they not have stuttered?
Perfecto con V-ing
could I not have been stuttering? could you not have been stuttering? could he not have been stuttering? could we not have been stuttering? could you not have been stuttering? could they not have been stuttering?