English verb conjugation
COULD OVERBURDEN

Regular verb: overburden - overburdened - overburdened

Affirmation

Simple form	V-ing form
I could overburden you could overburden he could overburden we could overburden you could overburden they could overburden	I could be overburdening you could be overburdening he could be overburdening we could be overburdening you could be overburdening they could be overburdening
Perfect	V-ing perfect
I could have overburdened you could have overburdened he could have overburdened we could have overburdened you could have overburdened they could have overburdened	I could have been overburdening you could have been overburdening he could have been overburdening we could have been overburdening you could have been overburdening they could have been overburdening

Negation

Simple form	V-ing form
I couldn't overburden you couldn't overburden he couldn't overburden we couldn't overburden you couldn't overburden they couldn't overburden	I couldn't be overburdening you couldn't be overburdening he couldn't be overburdening we couldn't be overburdening you couldn't be overburdening they couldn't be overburdening
Perfect	V-ing perfect
I couldn't have overburdened you couldn't have overburdened he couldn't have overburdened we couldn't have overburdened you couldn't have overburdened they couldn't have overburdened	I couldn't have been overburdening you couldn't have been overburdening he couldn't have been overburdening we couldn't have been overburdening you couldn't have been overburdening they couldn't have been overburdening

Interrogative form

Simple form	V-ing form
could I overburden? could you overburden? could he overburden? could we overburden? could you overburden? could they overburden?	could I be overburdening? could you be overburdening? could he be overburdening? could we be overburdening? could you be overburdening? could they be overburdening?
Perfect	V-ing perfect
could I have overburdened? could you have overburdened? could he have overburdened? could we have overburdened? could you have overburdened? could they have overburdened?	could I have been overburdening? could you have been overburdening? could he have been overburdening? could we have been overburdening? could you have been overburdening? could they have been overburdening?

Interro-negative form

Simple form	V-ing form
couldn't I overburden? couldn't you overburden? couldn't he overburden? couldn't we overburden? couldn't you overburden? couldn't they overburden?	couldn't I be overburdening? couldn't you be overburdening? couldn't he be overburdening? couldn't we be overburdening? couldn't you be overburdening? couldn't they be overburdening?
Perfect	V-ing perfect
couldn't I have overburdened? couldn't you have overburdened? couldn't he have overburdened? couldn't we have overburdened? couldn't you have overburdened? couldn't they have overburdened?	couldn't I have been overburdening? couldn't you have been overburdening? couldn't he have been overburdening? couldn't we have been overburdening? couldn't you have been overburdening? couldn't they have been overburdening?