English verb conjugation
COULD FILIBUSTER

Regular verb: filibuster - filibustered - filibustered

Affirmation

Simple form	V-ing form
I could filibuster you could filibuster he could filibuster we could filibuster you could filibuster they could filibuster	I could be filibustering you could be filibustering he could be filibustering we could be filibustering you could be filibustering they could be filibustering
Perfect	V-ing perfect
I could have filibustered you could have filibustered he could have filibustered we could have filibustered you could have filibustered they could have filibustered	I could have been filibustering you could have been filibustering he could have been filibustering we could have been filibustering you could have been filibustering they could have been filibustering

Negation

Simple form	V-ing form
I could not filibuster you could not filibuster he could not filibuster we could not filibuster you could not filibuster they could not filibuster	I could not be filibustering you could not be filibustering he could not be filibustering we could not be filibustering you could not be filibustering they could not be filibustering
Perfect	V-ing perfect
I could not have filibustered you could not have filibustered he could not have filibustered we could not have filibustered you could not have filibustered they could not have filibustered	I could not have been filibustering you could not have been filibustering he could not have been filibustering we could not have been filibustering you could not have been filibustering they could not have been filibustering

Interrogative form

Simple form	V-ing form
could I filibuster? could you filibuster? could he filibuster? could we filibuster? could you filibuster? could they filibuster?	could I be filibustering? could you be filibustering? could he be filibustering? could we be filibustering? could you be filibustering? could they be filibustering?
Perfect	V-ing perfect
could I have filibustered? could you have filibustered? could he have filibustered? could we have filibustered? could you have filibustered? could they have filibustered?	could I have been filibustering? could you have been filibustering? could he have been filibustering? could we have been filibustering? could you have been filibustering? could they have been filibustering?

Interro-negative form

Simple form	V-ing form
could I not filibuster? could you not filibuster? could he not filibuster? could we not filibuster? could you not filibuster? could they not filibuster?	could I not be filibustering? could you not be filibustering? could he not be filibustering? could we not be filibustering? could you not be filibustering? could they not be filibustering?
Perfect	V-ing perfect
could I not have filibustered? could you not have filibustered? could he not have filibustered? could we not have filibustered? could you not have filibustered? could they not have filibustered?	could I not have been filibustering? could you not have been filibustering? could he not have been filibustering? could we not have been filibustering? could you not have been filibustering? could they not have been filibustering?