English verb conjugation
COULD PRESCREEN

Regular verb: prescreen - prescreened - prescreened

Affirmation

Simple form	V-ing form
I could prescreen you could prescreen she could prescreen we could prescreen you could prescreen they could prescreen	I could be prescreening you could be prescreening she could be prescreening we could be prescreening you could be prescreening they could be prescreening
Perfect	V-ing perfect
I could have prescreened you could have prescreened she could have prescreened we could have prescreened you could have prescreened they could have prescreened	I could have been prescreening you could have been prescreening she could have been prescreening we could have been prescreening you could have been prescreening they could have been prescreening

Negation

Simple form	V-ing form
I couldn't prescreen you couldn't prescreen she couldn't prescreen we couldn't prescreen you couldn't prescreen they couldn't prescreen	I couldn't be prescreening you couldn't be prescreening she couldn't be prescreening we couldn't be prescreening you couldn't be prescreening they couldn't be prescreening
Perfect	V-ing perfect
I couldn't have prescreened you couldn't have prescreened she couldn't have prescreened we couldn't have prescreened you couldn't have prescreened they couldn't have prescreened	I couldn't have been prescreening you couldn't have been prescreening she couldn't have been prescreening we couldn't have been prescreening you couldn't have been prescreening they couldn't have been prescreening

Interrogative form

Simple form	V-ing form
could I prescreen? could you prescreen? could she prescreen? could we prescreen? could you prescreen? could they prescreen?	could I be prescreening? could you be prescreening? could she be prescreening? could we be prescreening? could you be prescreening? could they be prescreening?
Perfect	V-ing perfect
could I have prescreened? could you have prescreened? could she have prescreened? could we have prescreened? could you have prescreened? could they have prescreened?	could I have been prescreening? could you have been prescreening? could she have been prescreening? could we have been prescreening? could you have been prescreening? could they have been prescreening?

Interro-negative form

Simple form	V-ing form
couldn't I prescreen? couldn't you prescreen? couldn't she prescreen? couldn't we prescreen? couldn't you prescreen? couldn't they prescreen?	couldn't I be prescreening? couldn't you be prescreening? couldn't she be prescreening? couldn't we be prescreening? couldn't you be prescreening? couldn't they be prescreening?
Perfect	V-ing perfect
couldn't I have prescreened? couldn't you have prescreened? couldn't she have prescreened? couldn't we have prescreened? couldn't you have prescreened? couldn't they have prescreened?	couldn't I have been prescreening? couldn't you have been prescreening? couldn't she have been prescreening? couldn't we have been prescreening? couldn't you have been prescreening? couldn't they have been prescreening?