English verb conjugation
COULD FLUORESCE

Regular verb: fluoresce - fluoresced - fluoresced

Affirmation

Simple form	V-ing form
I could fluoresce you could fluoresce he could fluoresce we could fluoresce you could fluoresce they could fluoresce	I could be fluorescing you could be fluorescing he could be fluorescing we could be fluorescing you could be fluorescing they could be fluorescing
Perfect	V-ing perfect
I could have fluoresced you could have fluoresced he could have fluoresced we could have fluoresced you could have fluoresced they could have fluoresced	I could have been fluorescing you could have been fluorescing he could have been fluorescing we could have been fluorescing you could have been fluorescing they could have been fluorescing

Negation

Simple form	V-ing form
I could not fluoresce you could not fluoresce he could not fluoresce we could not fluoresce you could not fluoresce they could not fluoresce	I could not be fluorescing you could not be fluorescing he could not be fluorescing we could not be fluorescing you could not be fluorescing they could not be fluorescing
Perfect	V-ing perfect
I could not have fluoresced you could not have fluoresced he could not have fluoresced we could not have fluoresced you could not have fluoresced they could not have fluoresced	I could not have been fluorescing you could not have been fluorescing he could not have been fluorescing we could not have been fluorescing you could not have been fluorescing they could not have been fluorescing

Interrogative form

Simple form	V-ing form
could I fluoresce? could you fluoresce? could he fluoresce? could we fluoresce? could you fluoresce? could they fluoresce?	could I be fluorescing? could you be fluorescing? could he be fluorescing? could we be fluorescing? could you be fluorescing? could they be fluorescing?
Perfect	V-ing perfect
could I have fluoresced? could you have fluoresced? could he have fluoresced? could we have fluoresced? could you have fluoresced? could they have fluoresced?	could I have been fluorescing? could you have been fluorescing? could he have been fluorescing? could we have been fluorescing? could you have been fluorescing? could they have been fluorescing?

Interro-negative form

Simple form	V-ing form
could I not fluoresce? could you not fluoresce? could he not fluoresce? could we not fluoresce? could you not fluoresce? could they not fluoresce?	could I not be fluorescing? could you not be fluorescing? could he not be fluorescing? could we not be fluorescing? could you not be fluorescing? could they not be fluorescing?
Perfect	V-ing perfect
could I not have fluoresced? could you not have fluoresced? could he not have fluoresced? could we not have fluoresced? could you not have fluoresced? could they not have fluoresced?	could I not have been fluorescing? could you not have been fluorescing? could he not have been fluorescing? could we not have been fluorescing? could you not have been fluorescing? could they not have been fluorescing?