English verb conjugation
WOULD SUM

Regular verb: sum - summed - summed

Affirmation

Simple form	V-ing form
I would sum you would sum he would sum we would sum you would sum they would sum	I would be summing you would be summing he would be summing we would be summing you would be summing they would be summing
Perfect	V-ing perfect
I would have summed you would have summed he would have summed we would have summed you would have summed they would have summed	I would have been summing you would have been summing he would have been summing we would have been summing you would have been summing they would have been summing

Negation

Simple form	V-ing form
I would not sum you would not sum he would not sum we would not sum you would not sum they would not sum	I would not be summing you would not be summing he would not be summing we would not be summing you would not be summing they would not be summing
Perfect	V-ing perfect
I would not have summed you would not have summed he would not have summed we would not have summed you would not have summed they would not have summed	I would not have been summing you would not have been summing he would not have been summing we would not have been summing you would not have been summing they would not have been summing

Interrogative form

Simple form	V-ing form
would I sum? would you sum? would he sum? would we sum? would you sum? would they sum?	would I be summing? would you be summing? would he be summing? would we be summing? would you be summing? would they be summing?
Perfect	V-ing perfect
would I have summed? would you have summed? would he have summed? would we have summed? would you have summed? would they have summed?	would I have been summing? would you have been summing? would he have been summing? would we have been summing? would you have been summing? would they have been summing?

Interro-negative form

Simple form	V-ing form
would I not sum? would you not sum? would he not sum? would we not sum? would you not sum? would they not sum?	would I not be summing? would you not be summing? would he not be summing? would we not be summing? would you not be summing? would they not be summing?
Perfect	V-ing perfect
would I not have summed? would you not have summed? would he not have summed? would we not have summed? would you not have summed? would they not have summed?	would I not have been summing? would you not have been summing? would he not have been summing? would we not have been summing? would you not have been summing? would they not have been summing?