English verb conjugation
COULD TELPHER

Regular verb: telpher - telphered - telphered

Affirmation

Simple form	V-ing form
I could telpher you could telpher he could telpher we could telpher you could telpher they could telpher	I could be telphering you could be telphering he could be telphering we could be telphering you could be telphering they could be telphering
Perfect	V-ing perfect
I could have telphered you could have telphered he could have telphered we could have telphered you could have telphered they could have telphered	I could have been telphering you could have been telphering he could have been telphering we could have been telphering you could have been telphering they could have been telphering

Negation

Simple form	V-ing form
I could not telpher you could not telpher he could not telpher we could not telpher you could not telpher they could not telpher	I could not be telphering you could not be telphering he could not be telphering we could not be telphering you could not be telphering they could not be telphering
Perfect	V-ing perfect
I could not have telphered you could not have telphered he could not have telphered we could not have telphered you could not have telphered they could not have telphered	I could not have been telphering you could not have been telphering he could not have been telphering we could not have been telphering you could not have been telphering they could not have been telphering

Interrogative form

Simple form	V-ing form
could I telpher? could you telpher? could he telpher? could we telpher? could you telpher? could they telpher?	could I be telphering? could you be telphering? could he be telphering? could we be telphering? could you be telphering? could they be telphering?
Perfect	V-ing perfect
could I have telphered? could you have telphered? could he have telphered? could we have telphered? could you have telphered? could they have telphered?	could I have been telphering? could you have been telphering? could he have been telphering? could we have been telphering? could you have been telphering? could they have been telphering?

Interro-negative form

Simple form	V-ing form
could I not telpher? could you not telpher? could he not telpher? could we not telpher? could you not telpher? could they not telpher?	could I not be telphering? could you not be telphering? could he not be telphering? could we not be telphering? could you not be telphering? could they not be telphering?
Perfect	V-ing perfect
could I not have telphered? could you not have telphered? could he not have telphered? could we not have telphered? could you not have telphered? could they not have telphered?	could I not have been telphering? could you not have been telphering? could he not have been telphering? could we not have been telphering? could you not have been telphering? could they not have been telphering?