English verb conjugation
COULD PRESWEETEN

Regular verb: presweeten - presweetened - presweetened

Affirmation

Simple form	V-ing form
I could presweeten you could presweeten he could presweeten we could presweeten you could presweeten they could presweeten	I could be presweetening you could be presweetening he could be presweetening we could be presweetening you could be presweetening they could be presweetening
Perfect	V-ing perfect
I could have presweetened you could have presweetened he could have presweetened we could have presweetened you could have presweetened they could have presweetened	I could have been presweetening you could have been presweetening he could have been presweetening we could have been presweetening you could have been presweetening they could have been presweetening

Negation

Simple form	V-ing form
I could not presweeten you could not presweeten he could not presweeten we could not presweeten you could not presweeten they could not presweeten	I could not be presweetening you could not be presweetening he could not be presweetening we could not be presweetening you could not be presweetening they could not be presweetening
Perfect	V-ing perfect
I could not have presweetened you could not have presweetened he could not have presweetened we could not have presweetened you could not have presweetened they could not have presweetened	I could not have been presweetening you could not have been presweetening he could not have been presweetening we could not have been presweetening you could not have been presweetening they could not have been presweetening

Interrogative form

Simple form	V-ing form
could I presweeten? could you presweeten? could he presweeten? could we presweeten? could you presweeten? could they presweeten?	could I be presweetening? could you be presweetening? could he be presweetening? could we be presweetening? could you be presweetening? could they be presweetening?
Perfect	V-ing perfect
could I have presweetened? could you have presweetened? could he have presweetened? could we have presweetened? could you have presweetened? could they have presweetened?	could I have been presweetening? could you have been presweetening? could he have been presweetening? could we have been presweetening? could you have been presweetening? could they have been presweetening?

Interro-negative form

Simple form	V-ing form
could I not presweeten? could you not presweeten? could he not presweeten? could we not presweeten? could you not presweeten? could they not presweeten?	could I not be presweetening? could you not be presweetening? could he not be presweetening? could we not be presweetening? could you not be presweetening? could they not be presweetening?
Perfect	V-ing perfect
could I not have presweetened? could you not have presweetened? could he not have presweetened? could we not have presweetened? could you not have presweetened? could they not have presweetened?	could I not have been presweetening? could you not have been presweetening? could he not have been presweetening? could we not have been presweetening? could you not have been presweetening? could they not have been presweetening?