English verb conjugation
COULD TATTER

Regular verb: tatter - tattered - tattered

Affirmation

Simple form	V-ing form
I could tatter you could tatter she could tatter we could tatter you could tatter they could tatter	I could be tattering you could be tattering she 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 she 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 she 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 couldn't tatter you couldn't tatter she couldn't tatter we couldn't tatter you couldn't tatter they couldn't tatter	I couldn't be tattering you couldn't be tattering she couldn't be tattering we couldn't be tattering you couldn't be tattering they couldn't be tattering
Perfect	V-ing perfect
I couldn't have tattered you couldn't have tattered she couldn't have tattered we couldn't have tattered you couldn't have tattered they couldn't have tattered	I couldn't have been tattering you couldn't have been tattering she couldn't have been tattering we couldn't have been tattering you couldn't have been tattering they couldn't have been tattering

Interrogative form

Simple form	V-ing form
could I tatter? could you tatter? could she tatter? could we tatter? could you tatter? could they tatter?	could I be tattering? could you be tattering? could she 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 she 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 she 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
couldn't I tatter? couldn't you tatter? couldn't she tatter? couldn't we tatter? couldn't you tatter? couldn't they tatter?	couldn't I be tattering? couldn't you be tattering? couldn't she be tattering? couldn't we be tattering? couldn't you be tattering? couldn't they be tattering?
Perfect	V-ing perfect
couldn't I have tattered? couldn't you have tattered? couldn't she have tattered? couldn't we have tattered? couldn't you have tattered? couldn't they have tattered?	couldn't I have been tattering? couldn't you have been tattering? couldn't she have been tattering? couldn't we have been tattering? couldn't you have been tattering? couldn't they have been tattering?