English verb conjugation
SHOULD CURVE

Regular verb: curve - curved - curved

Affirmation

Simple form	V-ing form
I should curve you should curve he should curve we should curve you should curve they should curve	I should be curving you should be curving he should be curving we should be curving you should be curving they should be curving
Perfect	V-ing perfect
I should have curved you should have curved he should have curved we should have curved you should have curved they should have curved	I should have been curving you should have been curving he should have been curving we should have been curving you should have been curving they should have been curving

Negation

Simple form	V-ing form
I should not curve you should not curve he should not curve we should not curve you should not curve they should not curve	I should not be curving you should not be curving he should not be curving we should not be curving you should not be curving they should not be curving
Perfect	V-ing perfect
I should not have curved you should not have curved he should not have curved we should not have curved you should not have curved they should not have curved	I should not have been curving you should not have been curving he should not have been curving we should not have been curving you should not have been curving they should not have been curving

Interrogative form

Simple form	V-ing form
should I curve? should you curve? should he curve? should we curve? should you curve? should they curve?	should I be curving? should you be curving? should he be curving? should we be curving? should you be curving? should they be curving?
Perfect	V-ing perfect
should I have curved? should you have curved? should he have curved? should we have curved? should you have curved? should they have curved?	should I have been curving? should you have been curving? should he have been curving? should we have been curving? should you have been curving? should they have been curving?

Interro-negative form

Simple form	V-ing form
should I not curve? should you not curve? should he not curve? should we not curve? should you not curve? should they not curve?	should I not be curving? should you not be curving? should he not be curving? should we not be curving? should you not be curving? should they not be curving?
Perfect	V-ing perfect
should I not have curved? should you not have curved? should he not have curved? should we not have curved? should you not have curved? should they not have curved?	should I not have been curving? should you not have been curving? should he not have been curving? should we not have been curving? should you not have been curving? should they not have been curving?