English verb conjugation
COULD STUTTER

Regular verb: stutter - stuttered - stuttered

Affirmation

Simple form	V-ing form
I could stutter you could stutter she could stutter we could stutter you could stutter they could stutter	I could be stuttering you could be stuttering she could be stuttering we could be stuttering you could be stuttering they could be stuttering
Perfect	V-ing perfect
I could have stuttered you could have stuttered she could have stuttered we could have stuttered you could have stuttered they could have stuttered	I could have been stuttering you could have been stuttering she could have been stuttering we could have been stuttering you could have been stuttering they could have been stuttering

Negation

Simple form	V-ing form
I couldn't stutter you couldn't stutter she couldn't stutter we couldn't stutter you couldn't stutter they couldn't stutter	I couldn't be stuttering you couldn't be stuttering she couldn't be stuttering we couldn't be stuttering you couldn't be stuttering they couldn't be stuttering
Perfect	V-ing perfect
I couldn't have stuttered you couldn't have stuttered she couldn't have stuttered we couldn't have stuttered you couldn't have stuttered they couldn't have stuttered	I couldn't have been stuttering you couldn't have been stuttering she couldn't have been stuttering we couldn't have been stuttering you couldn't have been stuttering they couldn't have been stuttering

Interrogative form

Simple form	V-ing form
could I stutter? could you stutter? could she stutter? could we stutter? could you stutter? could they stutter?	could I be stuttering? could you be stuttering? could she be stuttering? could we be stuttering? could you be stuttering? could they be stuttering?
Perfect	V-ing perfect
could I have stuttered? could you have stuttered? could she have stuttered? could we have stuttered? could you have stuttered? could they have stuttered?	could I have been stuttering? could you have been stuttering? could she have been stuttering? could we have been stuttering? could you have been stuttering? could they have been stuttering?

Interro-negative form

Simple form	V-ing form
couldn't I stutter? couldn't you stutter? couldn't she stutter? couldn't we stutter? couldn't you stutter? couldn't they stutter?	couldn't I be stuttering? couldn't you be stuttering? couldn't she be stuttering? couldn't we be stuttering? couldn't you be stuttering? couldn't they be stuttering?
Perfect	V-ing perfect
couldn't I have stuttered? couldn't you have stuttered? couldn't she have stuttered? couldn't we have stuttered? couldn't you have stuttered? couldn't they have stuttered?	couldn't I have been stuttering? couldn't you have been stuttering? couldn't she have been stuttering? couldn't we have been stuttering? couldn't you have been stuttering? couldn't they have been stuttering?