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 couldn't presweeten you couldn't presweeten he couldn't presweeten we couldn't presweeten you couldn't presweeten they couldn't presweeten	I couldn't be presweetening you couldn't be presweetening he couldn't be presweetening we couldn't be presweetening you couldn't be presweetening they couldn't be presweetening
Perfect	V-ing perfect
I couldn't have presweetened you couldn't have presweetened he couldn't have presweetened we couldn't have presweetened you couldn't have presweetened they couldn't have presweetened	I couldn't have been presweetening you couldn't have been presweetening he couldn't have been presweetening we couldn't have been presweetening you couldn't have been presweetening they couldn't 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
couldn't I presweeten? couldn't you presweeten? couldn't he presweeten? couldn't we presweeten? couldn't you presweeten? couldn't they presweeten?	couldn't I be presweetening? couldn't you be presweetening? couldn't he be presweetening? couldn't we be presweetening? couldn't you be presweetening? couldn't they be presweetening?
Perfect	V-ing perfect
couldn't I have presweetened? couldn't you have presweetened? couldn't he have presweetened? couldn't we have presweetened? couldn't you have presweetened? couldn't they have presweetened?	couldn't I have been presweetening? couldn't you have been presweetening? couldn't he have been presweetening? couldn't we have been presweetening? couldn't you have been presweetening? couldn't they have been presweetening?