English verb conjugation
SHOULD ITCH

Regular verb: itch - itched - itched

Affirmation

Simple form	V-ing form
I should itch you should itch she should itch we should itch you should itch they should itch	I should be itching you should be itching she should be itching we should be itching you should be itching they should be itching
Perfect	V-ing perfect
I should have itched you should have itched she should have itched we should have itched you should have itched they should have itched	I should have been itching you should have been itching she should have been itching we should have been itching you should have been itching they should have been itching

Negation

Simple form	V-ing form
I should not itch you should not itch she should not itch we should not itch you should not itch they should not itch	I should not be itching you should not be itching she should not be itching we should not be itching you should not be itching they should not be itching
Perfect	V-ing perfect
I should not have itched you should not have itched she should not have itched we should not have itched you should not have itched they should not have itched	I should not have been itching you should not have been itching she should not have been itching we should not have been itching you should not have been itching they should not have been itching

Interrogative form

Simple form	V-ing form
should I itch? should you itch? should she itch? should we itch? should you itch? should they itch?	should I be itching? should you be itching? should she be itching? should we be itching? should you be itching? should they be itching?
Perfect	V-ing perfect
should I have itched? should you have itched? should she have itched? should we have itched? should you have itched? should they have itched?	should I have been itching? should you have been itching? should she have been itching? should we have been itching? should you have been itching? should they have been itching?

Interro-negative form

Simple form	V-ing form
should I not itch? should you not itch? should she not itch? should we not itch? should you not itch? should they not itch?	should I not be itching? should you not be itching? should she not be itching? should we not be itching? should you not be itching? should they not be itching?
Perfect	V-ing perfect
should I not have itched? should you not have itched? should she not have itched? should we not have itched? should you not have itched? should they not have itched?	should I not have been itching? should you not have been itching? should she not have been itching? should we not have been itching? should you not have been itching? should they not have been itching?