I should spy you should spy he should spy we should spy you should spy they should spy
V-ing form
I should be spying you should be spying he should be spying we should be spying you should be spying they should be spying
Perfect
I should have spied you should have spied he should have spied we should have spied you should have spied they should have spied
V-ing perfect
I should have been spying you should have been spying he should have been spying we should have been spying you should have been spying they should have been spying
Negation
Simple form
I should not spy you should not spy he should not spy we should not spy you should not spy they should not spy
V-ing form
I should not be spying you should not be spying he should not be spying we should not be spying you should not be spying they should not be spying
Perfect
I should not have spied you should not have spied he should not have spied we should not have spied you should not have spied they should not have spied
V-ing perfect
I should not have been spying you should not have been spying he should not have been spying we should not have been spying you should not have been spying they should not have been spying
Interrogative form
Simple form
should I spy? should you spy? should he spy? should we spy? should you spy? should they spy?
V-ing form
should I be spying? should you be spying? should he be spying? should we be spying? should you be spying? should they be spying?
Perfect
should I have spied? should you have spied? should he have spied? should we have spied? should you have spied? should they have spied?
V-ing perfect
should I have been spying? should you have been spying? should he have been spying? should we have been spying? should you have been spying? should they have been spying?
Interro-negative form
Simple form
should I not spy? should you not spy? should he not spy? should we not spy? should you not spy? should they not spy?
V-ing form
should I not be spying? should you not be spying? should he not be spying? should we not be spying? should you not be spying? should they not be spying?
Perfect
should I not have spied? should you not have spied? should he not have spied? should we not have spied? should you not have spied? should they not have spied?
V-ing perfect
should I not have been spying? should you not have been spying? should he not have been spying? should we not have been spying? should you not have been spying? should they not have been spying?