English verb conjugation
SHOULD SHELVE

Regular verb: shelve - shelved - shelved

Affirmation

Simple form	V-ing form
I'd shelve you'd shelve he'd shelve we'd shelve you'd shelve they'd shelve	I'd be shelving you'd be shelving he'd be shelving we'd be shelving you'd be shelving they'd be shelving
Perfect	V-ing perfect
I should've shelved you should've shelved he should've shelved we should've shelved you should've shelved they should've shelved	I should've been shelving you should've been shelving he should've been shelving we should've been shelving you should've been shelving they should've been shelving

Negation

Simple form	V-ing form
I shouldn't shelve you shouldn't shelve he shouldn't shelve we shouldn't shelve you shouldn't shelve they shouldn't shelve	I shouldn't be shelving you shouldn't be shelving he shouldn't be shelving we shouldn't be shelving you shouldn't be shelving they shouldn't be shelving
Perfect	V-ing perfect
I shouldn't have shelved you shouldn't have shelved he shouldn't have shelved we shouldn't have shelved you shouldn't have shelved they shouldn't have shelved	I shouldn't have been shelving you shouldn't have been shelving he shouldn't have been shelving we shouldn't have been shelving you shouldn't have been shelving they shouldn't have been shelving

Interrogative form

Simple form	V-ing form
should I shelve? should you shelve? should he shelve? should we shelve? should you shelve? should they shelve?	should I be shelving? should you be shelving? should he 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 he 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 he 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
shouldn't I shelve? shouldn't you shelve? shouldn't he shelve? shouldn't we shelve? shouldn't you shelve? shouldn't they shelve?	shouldn't I be shelving? shouldn't you be shelving? shouldn't he be shelving? shouldn't we be shelving? shouldn't you be shelving? shouldn't they be shelving?
Perfect	V-ing perfect
shouldn't I have shelved? shouldn't you have shelved? shouldn't he have shelved? shouldn't we have shelved? shouldn't you have shelved? shouldn't they have shelved?	shouldn't I have been shelving? shouldn't you have been shelving? shouldn't he have been shelving? shouldn't we have been shelving? shouldn't you have been shelving? shouldn't they have been shelving?