English verb conjugation
SHOULD CLACK

Regular verb: clack - clacked - clacked

Affirmation

Simple form	V-ing form
I should clack you should clack he should clack we should clack you should clack they should clack	I should be clacking you should be clacking he should be clacking we should be clacking you should be clacking they should be clacking
Perfect	V-ing perfect
I should have clacked you should have clacked he should have clacked we should have clacked you should have clacked they should have clacked	I should have been clacking you should have been clacking he should have been clacking we should have been clacking you should have been clacking they should have been clacking

Negation

Simple form	V-ing form
I should not clack you should not clack he should not clack we should not clack you should not clack they should not clack	I should not be clacking you should not be clacking he should not be clacking we should not be clacking you should not be clacking they should not be clacking
Perfect	V-ing perfect
I should not have clacked you should not have clacked he should not have clacked we should not have clacked you should not have clacked they should not have clacked	I should not have been clacking you should not have been clacking he should not have been clacking we should not have been clacking you should not have been clacking they should not have been clacking

Interrogative form

Simple form	V-ing form
should I clack? should you clack? should he clack? should we clack? should you clack? should they clack?	should I be clacking? should you be clacking? should he be clacking? should we be clacking? should you be clacking? should they be clacking?
Perfect	V-ing perfect
should I have clacked? should you have clacked? should he have clacked? should we have clacked? should you have clacked? should they have clacked?	should I have been clacking? should you have been clacking? should he have been clacking? should we have been clacking? should you have been clacking? should they have been clacking?

Interro-negative form

Simple form	V-ing form
should I not clack? should you not clack? should he not clack? should we not clack? should you not clack? should they not clack?	should I not be clacking? should you not be clacking? should he not be clacking? should we not be clacking? should you not be clacking? should they not be clacking?
Perfect	V-ing perfect
should I not have clacked? should you not have clacked? should he not have clacked? should we not have clacked? should you not have clacked? should they not have clacked?	should I not have been clacking? should you not have been clacking? should he not have been clacking? should we not have been clacking? should you not have been clacking? should they not have been clacking?