could spy
Regular verb: spy - spied- spied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could spy
you could spy
she could spy
we could spy
you could spy
they could spy 	I could be spying
you could be spying
she could be spying
we could be spying
you could be spying
they could be spying	I could have spied
you could have spied
she could have spied
we could have spied
you could have spied
they could have spied	I could have been spying
you could have been spying
she could have been spying
we could have been spying
you could have been spying
they could have been spying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't spy
you couldn't spy
she couldn't spy
we couldn't spy
you couldn't spy
they couldn't spy 	I couldn't be spying
you couldn't be spying
she couldn't be spying
we couldn't be spying
you couldn't be spying
they couldn't be spying	I couldn't have spied
you couldn't have spied
she couldn't have spied
we couldn't have spied
you couldn't have spied
they couldn't have spied	I couldn't have been spying
you couldn't have been spying
she couldn't have been spying
we couldn't have been spying
you couldn't have been spying
they couldn't have been spying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I spy?
could you spy?
could she spy?
could we spy?
could you spy?
could they spy? 	could I be spying?
could you be spying?
could she be spying?
could we be spying?
could you be spying?
could they be spying? 	could I have spied?
could you have spied?
could she have spied?
could we have spied?
could you have spied?
could they have spied? 	could I have been spying?
could you have been spying?
could she have been spying?
could we have been spying?
could you have been spying?
could they have been spying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I spy?
couldn't you spy?
couldn't she spy?
couldn't we spy?
couldn't you spy?
couldn't they spy? 	couldn't I be spying?
couldn't you be spying?
couldn't she be spying?
couldn't we be spying?
couldn't you be spying?
couldn't they be spying? 	couldn't I have spied?
couldn't you have spied?
couldn't she have spied?
couldn't we have spied?
couldn't you have spied?
couldn't they have spied? 	couldn't I have been spying?
couldn't you have been spying?
couldn't she have been spying?
couldn't we have been spying?
couldn't you have been spying?
couldn't they have been spying?