English verb conjugation
COULD FLUSTER

Regular verb: fluster - flustered - flustered

Affirmation

Simple form	V-ing form
I could fluster you could fluster he could fluster we could fluster you could fluster they could fluster	I could be flustering you could be flustering he could be flustering we could be flustering you could be flustering they could be flustering
Perfect	V-ing perfect
I could have flustered you could have flustered he could have flustered we could have flustered you could have flustered they could have flustered	I could have been flustering you could have been flustering he could have been flustering we could have been flustering you could have been flustering they could have been flustering

Negation

Simple form	V-ing form
I could not fluster you could not fluster he could not fluster we could not fluster you could not fluster they could not fluster	I could not be flustering you could not be flustering he could not be flustering we could not be flustering you could not be flustering they could not be flustering
Perfect	V-ing perfect
I could not have flustered you could not have flustered he could not have flustered we could not have flustered you could not have flustered they could not have flustered	I could not have been flustering you could not have been flustering he could not have been flustering we could not have been flustering you could not have been flustering they could not have been flustering

Interrogative form

Simple form	V-ing form
could I fluster? could you fluster? could he fluster? could we fluster? could you fluster? could they fluster?	could I be flustering? could you be flustering? could he be flustering? could we be flustering? could you be flustering? could they be flustering?
Perfect	V-ing perfect
could I have flustered? could you have flustered? could he have flustered? could we have flustered? could you have flustered? could they have flustered?	could I have been flustering? could you have been flustering? could he have been flustering? could we have been flustering? could you have been flustering? could they have been flustering?

Interro-negative form

Simple form	V-ing form
could I not fluster? could you not fluster? could he not fluster? could we not fluster? could you not fluster? could they not fluster?	could I not be flustering? could you not be flustering? could he not be flustering? could we not be flustering? could you not be flustering? could they not be flustering?
Perfect	V-ing perfect
could I not have flustered? could you not have flustered? could he not have flustered? could we not have flustered? could you not have flustered? could they not have flustered?	could I not have been flustering? could you not have been flustering? could he not have been flustering? could we not have been flustering? could you not have been flustering? could they not have been flustering?