English verb conjugation
COULD EMBITTER

Regular verb: embitter - embittered - embittered

Affirmation

Simple form	V-ing form
I could embitter you could embitter he could embitter we could embitter you could embitter they could embitter	I could be embittering you could be embittering he 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 he 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 he 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 couldn't embitter you couldn't embitter he couldn't embitter we couldn't embitter you couldn't embitter they couldn't embitter	I couldn't be embittering you couldn't be embittering he couldn't be embittering we couldn't be embittering you couldn't be embittering they couldn't be embittering
Perfect	V-ing perfect
I couldn't have embittered you couldn't have embittered he couldn't have embittered we couldn't have embittered you couldn't have embittered they couldn't have embittered	I couldn't have been embittering you couldn't have been embittering he couldn't have been embittering we couldn't have been embittering you couldn't have been embittering they couldn't have been embittering

Interrogative form

Simple form	V-ing form
could I embitter? could you embitter? could he embitter? could we embitter? could you embitter? could they embitter?	could I be embittering? could you be embittering? could he 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 he 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 he 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
couldn't I embitter? couldn't you embitter? couldn't he embitter? couldn't we embitter? couldn't you embitter? couldn't they embitter?	couldn't I be embittering? couldn't you be embittering? couldn't he be embittering? couldn't we be embittering? couldn't you be embittering? couldn't they be embittering?
Perfect	V-ing perfect
couldn't I have embittered? couldn't you have embittered? couldn't he have embittered? couldn't we have embittered? couldn't you have embittered? couldn't they have embittered?	couldn't I have been embittering? couldn't you have been embittering? couldn't he have been embittering? couldn't we have been embittering? couldn't you have been embittering? couldn't they have been embittering?