should shelve
Verbo regular: shelve - shelved- shelved

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should shelve
you should shelve
he should shelve
we should shelve
you should shelve
they should shelve 	I should be shelving
you should be shelving
he should be shelving
we should be shelving
you should be shelving
they should be shelving	I should have shelved
you should have shelved
he 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
he should have been shelving
we should have been shelving
you should have been shelving
they should have been shelving	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not shelve
you should not shelve
he 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
he should not be shelving
we should not be shelving
you should not be shelving
they should not be shelving	I should not have shelved
you should not have shelved
he 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
he should not have been shelving
we should not have been shelving
you should not have been shelving
they should not have been shelving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not shelve?
should you not shelve?
should he 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 he not be shelving?
should we not be shelving?
should you not be shelving?
should they not be shelving? 	should I not have shelved?
should you not have shelved?
should he 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 he not have been shelving?
should we not have been shelving?
should you not have been shelving?
should they not have been shelving?