English verb conjugation
SHOULD DERIVE

Regular verb: derive - derived - derived

Affirmation

Simple form	V-ing form
I should derive you should derive he should derive we should derive you should derive they should derive	I should be deriving you should be deriving he should be deriving we should be deriving you should be deriving they should be deriving
Perfect	V-ing perfect
I should have derived you should have derived he should have derived we should have derived you should have derived they should have derived	I should have been deriving you should have been deriving he should have been deriving we should have been deriving you should have been deriving they should have been deriving

Negation

Simple form	V-ing form
I should not derive you should not derive he should not derive we should not derive you should not derive they should not derive	I should not be deriving you should not be deriving he should not be deriving we should not be deriving you should not be deriving they should not be deriving
Perfect	V-ing perfect
I should not have derived you should not have derived he should not have derived we should not have derived you should not have derived they should not have derived	I should not have been deriving you should not have been deriving he should not have been deriving we should not have been deriving you should not have been deriving they should not have been deriving

Interrogative form

Simple form	V-ing form
should I derive? should you derive? should he derive? should we derive? should you derive? should they derive?	should I be deriving? should you be deriving? should he be deriving? should we be deriving? should you be deriving? should they be deriving?
Perfect	V-ing perfect
should I have derived? should you have derived? should he have derived? should we have derived? should you have derived? should they have derived?	should I have been deriving? should you have been deriving? should he have been deriving? should we have been deriving? should you have been deriving? should they have been deriving?

Interro-negative form

Simple form	V-ing form
should I not derive? should you not derive? should he not derive? should we not derive? should you not derive? should they not derive?	should I not be deriving? should you not be deriving? should he not be deriving? should we not be deriving? should you not be deriving? should they not be deriving?
Perfect	V-ing perfect
should I not have derived? should you not have derived? should he not have derived? should we not have derived? should you not have derived? should they not have derived?	should I not have been deriving? should you not have been deriving? should he not have been deriving? should we not have been deriving? should you not have been deriving? should they not have been deriving?