English verb conjugation
COULD LADDER

Regular verb: ladder - laddered - laddered

Affirmation

Simple form	V-ing form
I could ladder you could ladder he could ladder we could ladder you could ladder they could ladder	I could be laddering you could be laddering he could be laddering we could be laddering you could be laddering they could be laddering
Perfect	V-ing perfect
I could have laddered you could have laddered he could have laddered we could have laddered you could have laddered they could have laddered	I could have been laddering you could have been laddering he could have been laddering we could have been laddering you could have been laddering they could have been laddering

Negation

Simple form	V-ing form
I could not ladder you could not ladder he could not ladder we could not ladder you could not ladder they could not ladder	I could not be laddering you could not be laddering he could not be laddering we could not be laddering you could not be laddering they could not be laddering
Perfect	V-ing perfect
I could not have laddered you could not have laddered he could not have laddered we could not have laddered you could not have laddered they could not have laddered	I could not have been laddering you could not have been laddering he could not have been laddering we could not have been laddering you could not have been laddering they could not have been laddering

Interrogative form

Simple form	V-ing form
could I ladder? could you ladder? could he ladder? could we ladder? could you ladder? could they ladder?	could I be laddering? could you be laddering? could he be laddering? could we be laddering? could you be laddering? could they be laddering?
Perfect	V-ing perfect
could I have laddered? could you have laddered? could he have laddered? could we have laddered? could you have laddered? could they have laddered?	could I have been laddering? could you have been laddering? could he have been laddering? could we have been laddering? could you have been laddering? could they have been laddering?

Interro-negative form

Simple form	V-ing form
could I not ladder? could you not ladder? could he not ladder? could we not ladder? could you not ladder? could they not ladder?	could I not be laddering? could you not be laddering? could he not be laddering? could we not be laddering? could you not be laddering? could they not be laddering?
Perfect	V-ing perfect
could I not have laddered? could you not have laddered? could he not have laddered? could we not have laddered? could you not have laddered? could they not have laddered?	could I not have been laddering? could you not have been laddering? could he not have been laddering? could we not have been laddering? could you not have been laddering? could they not have been laddering?