English verb conjugation
SHOULD CURL

Regular verb: curl - curled - curled

Affirmation

Simple form	V-ing form
I should curl you should curl he should curl we should curl you should curl they should curl	I should be curling you should be curling he should be curling we should be curling you should be curling they should be curling
Perfect	V-ing perfect
I should have curled you should have curled he should have curled we should have curled you should have curled they should have curled	I should have been curling you should have been curling he should have been curling we should have been curling you should have been curling they should have been curling

Negation

Simple form	V-ing form
I should not curl you should not curl he should not curl we should not curl you should not curl they should not curl	I should not be curling you should not be curling he should not be curling we should not be curling you should not be curling they should not be curling
Perfect	V-ing perfect
I should not have curled you should not have curled he should not have curled we should not have curled you should not have curled they should not have curled	I should not have been curling you should not have been curling he should not have been curling we should not have been curling you should not have been curling they should not have been curling

Interrogative form

Simple form	V-ing form
should I curl? should you curl? should he curl? should we curl? should you curl? should they curl?	should I be curling? should you be curling? should he be curling? should we be curling? should you be curling? should they be curling?
Perfect	V-ing perfect
should I have curled? should you have curled? should he have curled? should we have curled? should you have curled? should they have curled?	should I have been curling? should you have been curling? should he have been curling? should we have been curling? should you have been curling? should they have been curling?

Interro-negative form

Simple form	V-ing form
should I not curl? should you not curl? should he not curl? should we not curl? should you not curl? should they not curl?	should I not be curling? should you not be curling? should he not be curling? should we not be curling? should you not be curling? should they not be curling?
Perfect	V-ing perfect
should I not have curled? should you not have curled? should he not have curled? should we not have curled? should you not have curled? should they not have curled?	should I not have been curling? should you not have been curling? should he not have been curling? should we not have been curling? should you not have been curling? should they not have been curling?