could spay
Regular verb: spay - spayed- spayed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could spay
you could spay
he could spay
we could spay
you could spay
they could spay 	I could be spaying
you could be spaying
he could be spaying
we could be spaying
you could be spaying
they could be spaying	I could have spayed
you could have spayed
he could have spayed
we could have spayed
you could have spayed
they could have spayed	I could have been spaying
you could have been spaying
he could have been spaying
we could have been spaying
you could have been spaying
they could have been spaying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't spay
you couldn't spay
he couldn't spay
we couldn't spay
you couldn't spay
they couldn't spay 	I couldn't be spaying
you couldn't be spaying
he couldn't be spaying
we couldn't be spaying
you couldn't be spaying
they couldn't be spaying	I couldn't have spayed
you couldn't have spayed
he couldn't have spayed
we couldn't have spayed
you couldn't have spayed
they couldn't have spayed	I couldn't have been spaying
you couldn't have been spaying
he couldn't have been spaying
we couldn't have been spaying
you couldn't have been spaying
they couldn't have been spaying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I spay?
could you spay?
could he spay?
could we spay?
could you spay?
could they spay? 	could I be spaying?
could you be spaying?
could he be spaying?
could we be spaying?
could you be spaying?
could they be spaying? 	could I have spayed?
could you have spayed?
could he have spayed?
could we have spayed?
could you have spayed?
could they have spayed? 	could I have been spaying?
could you have been spaying?
could he have been spaying?
could we have been spaying?
could you have been spaying?
could they have been spaying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I spay?
couldn't you spay?
couldn't he spay?
couldn't we spay?
couldn't you spay?
couldn't they spay? 	couldn't I be spaying?
couldn't you be spaying?
couldn't he be spaying?
couldn't we be spaying?
couldn't you be spaying?
couldn't they be spaying? 	couldn't I have spayed?
couldn't you have spayed?
couldn't he have spayed?
couldn't we have spayed?
couldn't you have spayed?
couldn't they have spayed? 	couldn't I have been spaying?
couldn't you have been spaying?
couldn't he have been spaying?
couldn't we have been spaying?
couldn't you have been spaying?
couldn't they have been spaying?