English verb conjugation
COULD ENDAMAGE

Regular verb: endamage - endamaged - endamaged

Affirmation

Simple form	V-ing form
I could endamage you could endamage he could endamage we could endamage you could endamage they could endamage	I could be endamaging you could be endamaging he could be endamaging we could be endamaging you could be endamaging they could be endamaging
Perfect	V-ing perfect
I could have endamaged you could have endamaged he could have endamaged we could have endamaged you could have endamaged they could have endamaged	I could have been endamaging you could have been endamaging he could have been endamaging we could have been endamaging you could have been endamaging they could have been endamaging

Negation

Simple form	V-ing form
I couldn't endamage you couldn't endamage he couldn't endamage we couldn't endamage you couldn't endamage they couldn't endamage	I couldn't be endamaging you couldn't be endamaging he couldn't be endamaging we couldn't be endamaging you couldn't be endamaging they couldn't be endamaging
Perfect	V-ing perfect
I couldn't have endamaged you couldn't have endamaged he couldn't have endamaged we couldn't have endamaged you couldn't have endamaged they couldn't have endamaged	I couldn't have been endamaging you couldn't have been endamaging he couldn't have been endamaging we couldn't have been endamaging you couldn't have been endamaging they couldn't have been endamaging

Interrogative form

Simple form	V-ing form
could I endamage? could you endamage? could he endamage? could we endamage? could you endamage? could they endamage?	could I be endamaging? could you be endamaging? could he be endamaging? could we be endamaging? could you be endamaging? could they be endamaging?
Perfect	V-ing perfect
could I have endamaged? could you have endamaged? could he have endamaged? could we have endamaged? could you have endamaged? could they have endamaged?	could I have been endamaging? could you have been endamaging? could he have been endamaging? could we have been endamaging? could you have been endamaging? could they have been endamaging?

Interro-negative form

Simple form	V-ing form
couldn't I endamage? couldn't you endamage? couldn't he endamage? couldn't we endamage? couldn't you endamage? couldn't they endamage?	couldn't I be endamaging? couldn't you be endamaging? couldn't he be endamaging? couldn't we be endamaging? couldn't you be endamaging? couldn't they be endamaging?
Perfect	V-ing perfect
couldn't I have endamaged? couldn't you have endamaged? couldn't he have endamaged? couldn't we have endamaged? couldn't you have endamaged? couldn't they have endamaged?	couldn't I have been endamaging? couldn't you have been endamaging? couldn't he have been endamaging? couldn't we have been endamaging? couldn't you have been endamaging? couldn't they have been endamaging?