English verb conjugation
SHOULD SHELVE

Regular verb: shelve - shelved - shelved

Affirmation

Simple form	V-ing form
I should shelve you should shelve she should shelve we should shelve you should shelve they should shelve	I should be shelving you should be shelving she should be shelving we should be shelving you should be shelving they should be shelving
Perfect	V-ing perfect
I should have shelved you should have shelved she should have shelved we should have shelved you should have shelved they should have shelved	I should have been shelving you should have been shelving she should have been shelving we should have been shelving you should have been shelving they should have been shelving

Negation

Simple form	V-ing form
I should not shelve you should not shelve she should not shelve we should not shelve you should not shelve they should not shelve	I should not be shelving you should not be shelving she should not be shelving we should not be shelving you should not be shelving they should not be shelving
Perfect	V-ing perfect
I should not have shelved you should not have shelved she should not have shelved we should not have shelved you should not have shelved they should not have shelved	I should not have been shelving you should not have been shelving she should not have been shelving we should not have been shelving you should not have been shelving they should not have been shelving

Interrogative form

Simple form	V-ing form
should I shelve? should you shelve? should she shelve? should we shelve? should you shelve? should they shelve?	should I be shelving? should you be shelving? should she be shelving? should we be shelving? should you be shelving? should they be shelving?
Perfect	V-ing perfect
should I have shelved? should you have shelved? should she have shelved? should we have shelved? should you have shelved? should they have shelved?	should I have been shelving? should you have been shelving? should she have been shelving? should we have been shelving? should you have been shelving? should they have been shelving?

Interro-negative form

Simple form	V-ing form
should I not shelve? should you not shelve? should she not shelve? should we not shelve? should you not shelve? should they not shelve?	should I not be shelving? should you not be shelving? should she not be shelving? should we not be shelving? should you not be shelving? should they not be shelving?
Perfect	V-ing perfect
should I not have shelved? should you not have shelved? should she not have shelved? should we not have shelved? should you not have shelved? should they not have shelved?	should I not have been shelving? should you not have been shelving? should she not have been shelving? should we not have been shelving? should you not have been shelving? should they not have been shelving?