English verb conjugation
COULD TATTER

Regular verb: tatter - tattered - tattered

Affirmation

Simple form	V-ing form
I could tatter you could tatter he could tatter we could tatter you could tatter they could tatter	I could be tattering you could be tattering he could be tattering we could be tattering you could be tattering they could be tattering
Perfect	V-ing perfect
I could have tattered you could have tattered he could have tattered we could have tattered you could have tattered they could have tattered	I could have been tattering you could have been tattering he could have been tattering we could have been tattering you could have been tattering they could have been tattering

Negation

Simple form	V-ing form
I could not tatter you could not tatter he could not tatter we could not tatter you could not tatter they could not tatter	I could not be tattering you could not be tattering he could not be tattering we could not be tattering you could not be tattering they could not be tattering
Perfect	V-ing perfect
I could not have tattered you could not have tattered he could not have tattered we could not have tattered you could not have tattered they could not have tattered	I could not have been tattering you could not have been tattering he could not have been tattering we could not have been tattering you could not have been tattering they could not have been tattering

Interrogative form

Simple form	V-ing form
could I tatter? could you tatter? could he tatter? could we tatter? could you tatter? could they tatter?	could I be tattering? could you be tattering? could he be tattering? could we be tattering? could you be tattering? could they be tattering?
Perfect	V-ing perfect
could I have tattered? could you have tattered? could he have tattered? could we have tattered? could you have tattered? could they have tattered?	could I have been tattering? could you have been tattering? could he have been tattering? could we have been tattering? could you have been tattering? could they have been tattering?

Interro-negative form

Simple form	V-ing form
could I not tatter? could you not tatter? could he not tatter? could we not tatter? could you not tatter? could they not tatter?	could I not be tattering? could you not be tattering? could he not be tattering? could we not be tattering? could you not be tattering? could they not be tattering?
Perfect	V-ing perfect
could I not have tattered? could you not have tattered? could he not have tattered? could we not have tattered? could you not have tattered? could they not have tattered?	could I not have been tattering? could you not have been tattering? could he not have been tattering? could we not have been tattering? could you not have been tattering? could they not have been tattering?