English verb conjugation
COULD EMBITTER

Regular verb: embitter - embittered - embittered

Affirmation

Simple form	V-ing form
I could embitter you could embitter she could embitter we could embitter you could embitter they could embitter	I could be embittering you could be embittering she could be embittering we could be embittering you could be embittering they could be embittering
Perfect	V-ing perfect
I could have embittered you could have embittered she could have embittered we could have embittered you could have embittered they could have embittered	I could have been embittering you could have been embittering she could have been embittering we could have been embittering you could have been embittering they could have been embittering

Negation

Simple form	V-ing form
I could not embitter you could not embitter she could not embitter we could not embitter you could not embitter they could not embitter	I could not be embittering you could not be embittering she could not be embittering we could not be embittering you could not be embittering they could not be embittering
Perfect	V-ing perfect
I could not have embittered you could not have embittered she could not have embittered we could not have embittered you could not have embittered they could not have embittered	I could not have been embittering you could not have been embittering she could not have been embittering we could not have been embittering you could not have been embittering they could not have been embittering

Interrogative form

Simple form	V-ing form
could I embitter? could you embitter? could she embitter? could we embitter? could you embitter? could they embitter?	could I be embittering? could you be embittering? could she be embittering? could we be embittering? could you be embittering? could they be embittering?
Perfect	V-ing perfect
could I have embittered? could you have embittered? could she have embittered? could we have embittered? could you have embittered? could they have embittered?	could I have been embittering? could you have been embittering? could she have been embittering? could we have been embittering? could you have been embittering? could they have been embittering?

Interro-negative form

Simple form	V-ing form
could I not embitter? could you not embitter? could she not embitter? could we not embitter? could you not embitter? could they not embitter?	could I not be embittering? could you not be embittering? could she not be embittering? could we not be embittering? could you not be embittering? could they not be embittering?
Perfect	V-ing perfect
could I not have embittered? could you not have embittered? could she not have embittered? could we not have embittered? could you not have embittered? could they not have embittered?	could I not have been embittering? could you not have been embittering? could she not have been embittering? could we not have been embittering? could you not have been embittering? could they not have been embittering?