English verb conjugation
COULD LATEN

Regular verb: laten - latened - latened

Affirmation

Simple form	V-ing form
I could laten you could laten he could laten we could laten you could laten they could laten	I could be latening you could be latening he could be latening we could be latening you could be latening they could be latening
Perfect	V-ing perfect
I could have latened you could have latened he could have latened we could have latened you could have latened they could have latened	I could have been latening you could have been latening he could have been latening we could have been latening you could have been latening they could have been latening

Negation

Simple form	V-ing form
I couldn't laten you couldn't laten he couldn't laten we couldn't laten you couldn't laten they couldn't laten	I couldn't be latening you couldn't be latening he couldn't be latening we couldn't be latening you couldn't be latening they couldn't be latening
Perfect	V-ing perfect
I couldn't have latened you couldn't have latened he couldn't have latened we couldn't have latened you couldn't have latened they couldn't have latened	I couldn't have been latening you couldn't have been latening he couldn't have been latening we couldn't have been latening you couldn't have been latening they couldn't have been latening

Interrogative form

Simple form	V-ing form
could I laten? could you laten? could he laten? could we laten? could you laten? could they laten?	could I be latening? could you be latening? could he be latening? could we be latening? could you be latening? could they be latening?
Perfect	V-ing perfect
could I have latened? could you have latened? could he have latened? could we have latened? could you have latened? could they have latened?	could I have been latening? could you have been latening? could he have been latening? could we have been latening? could you have been latening? could they have been latening?

Interro-negative form

Simple form	V-ing form
couldn't I laten? couldn't you laten? couldn't he laten? couldn't we laten? couldn't you laten? couldn't they laten?	couldn't I be latening? couldn't you be latening? couldn't he be latening? couldn't we be latening? couldn't you be latening? couldn't they be latening?
Perfect	V-ing perfect
couldn't I have latened? couldn't you have latened? couldn't he have latened? couldn't we have latened? couldn't you have latened? couldn't they have latened?	couldn't I have been latening? couldn't you have been latening? couldn't he have been latening? couldn't we have been latening? couldn't you have been latening? couldn't they have been latening?