English verb conjugation
COULD FLUTE

Regular verb: flute - fluted - fluted

Affirmation

Simple form	V-ing form
I could flute you could flute he could flute we could flute you could flute they could flute	I could be fluting you could be fluting he could be fluting we could be fluting you could be fluting they could be fluting
Perfect	V-ing perfect
I could have fluted you could have fluted he could have fluted we could have fluted you could have fluted they could have fluted	I could have been fluting you could have been fluting he could have been fluting we could have been fluting you could have been fluting they could have been fluting

Negation

Simple form	V-ing form
I could not flute you could not flute he could not flute we could not flute you could not flute they could not flute	I could not be fluting you could not be fluting he could not be fluting we could not be fluting you could not be fluting they could not be fluting
Perfect	V-ing perfect
I could not have fluted you could not have fluted he could not have fluted we could not have fluted you could not have fluted they could not have fluted	I could not have been fluting you could not have been fluting he could not have been fluting we could not have been fluting you could not have been fluting they could not have been fluting

Interrogative form

Simple form	V-ing form
could I flute? could you flute? could he flute? could we flute? could you flute? could they flute?	could I be fluting? could you be fluting? could he be fluting? could we be fluting? could you be fluting? could they be fluting?
Perfect	V-ing perfect
could I have fluted? could you have fluted? could he have fluted? could we have fluted? could you have fluted? could they have fluted?	could I have been fluting? could you have been fluting? could he have been fluting? could we have been fluting? could you have been fluting? could they have been fluting?

Interro-negative form

Simple form	V-ing form
could I not flute? could you not flute? could he not flute? could we not flute? could you not flute? could they not flute?	could I not be fluting? could you not be fluting? could he not be fluting? could we not be fluting? could you not be fluting? could they not be fluting?
Perfect	V-ing perfect
could I not have fluted? could you not have fluted? could he not have fluted? could we not have fluted? could you not have fluted? could they not have fluted?	could I not have been fluting? could you not have been fluting? could he not have been fluting? could we not have been fluting? could you not have been fluting? could they not have been fluting?