English verb conjugation
SHOULD PURL

Regular verb: purl - purled - purled

Affirmation

Simple form	V-ing form
I should purl you should purl he should purl we should purl you should purl they should purl	I should be purling you should be purling he should be purling we should be purling you should be purling they should be purling
Perfect	V-ing perfect
I should have purled you should have purled he should have purled we should have purled you should have purled they should have purled	I should have been purling you should have been purling he should have been purling we should have been purling you should have been purling they should have been purling

Negation

Simple form	V-ing form
I should not purl you should not purl he should not purl we should not purl you should not purl they should not purl	I should not be purling you should not be purling he should not be purling we should not be purling you should not be purling they should not be purling
Perfect	V-ing perfect
I should not have purled you should not have purled he should not have purled we should not have purled you should not have purled they should not have purled	I should not have been purling you should not have been purling he should not have been purling we should not have been purling you should not have been purling they should not have been purling

Interrogative form

Simple form	V-ing form
should I purl? should you purl? should he purl? should we purl? should you purl? should they purl?	should I be purling? should you be purling? should he be purling? should we be purling? should you be purling? should they be purling?
Perfect	V-ing perfect
should I have purled? should you have purled? should he have purled? should we have purled? should you have purled? should they have purled?	should I have been purling? should you have been purling? should he have been purling? should we have been purling? should you have been purling? should they have been purling?

Interro-negative form

Simple form	V-ing form
should I not purl? should you not purl? should he not purl? should we not purl? should you not purl? should they not purl?	should I not be purling? should you not be purling? should he not be purling? should we not be purling? should you not be purling? should they not be purling?
Perfect	V-ing perfect
should I not have purled? should you not have purled? should he not have purled? should we not have purled? should you not have purled? should they not have purled?	should I not have been purling? should you not have been purling? should he not have been purling? should we not have been purling? should you not have been purling? should they not have been purling?