English verb conjugation
SHOULD RUN

Irregular verb: run - ran - run

Affirmation

Simple form	V-ing form
I should run you should run she should run we should run you should run they should run	I should be running you should be running she should be running we should be running you should be running they should be running
Perfect	V-ing perfect
I should have run you should have run she should have run we should have run you should have run they should have run	I should have been running you should have been running she should have been running we should have been running you should have been running they should have been running

Negation

Simple form	V-ing form
I should not run you should not run she should not run we should not run you should not run they should not run	I should not be running you should not be running she should not be running we should not be running you should not be running they should not be running
Perfect	V-ing perfect
I should not have run you should not have run she should not have run we should not have run you should not have run they should not have run	I should not have been running you should not have been running she should not have been running we should not have been running you should not have been running they should not have been running

Interrogative form

Simple form	V-ing form
should I run? should you run? should she run? should we run? should you run? should they run?	should I be running? should you be running? should she be running? should we be running? should you be running? should they be running?
Perfect	V-ing perfect
should I have run? should you have run? should she have run? should we have run? should you have run? should they have run?	should I have been running? should you have been running? should she have been running? should we have been running? should you have been running? should they have been running?

Interro-negative form

Simple form	V-ing form
should I not run? should you not run? should she not run? should we not run? should you not run? should they not run?	should I not be running? should you not be running? should she not be running? should we not be running? should you not be running? should they not be running?
Perfect	V-ing perfect
should I not have run? should you not have run? should she not have run? should we not have run? should you not have run? should they not have run?	should I not have been running? should you not have been running? should she not have been running? should we not have been running? should you not have been running? should they not have been running?