could tabby
Regular verb: tabby - tabbied- tabbied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could tabby
you could tabby
he could tabby
we could tabby
you could tabby
they could tabby 	I could be tabbying
you could be tabbying
he could be tabbying
we could be tabbying
you could be tabbying
they could be tabbying	I could have tabbied
you could have tabbied
he could have tabbied
we could have tabbied
you could have tabbied
they could have tabbied	I could have been tabbying
you could have been tabbying
he could have been tabbying
we could have been tabbying
you could have been tabbying
they could have been tabbying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't tabby
you couldn't tabby
he couldn't tabby
we couldn't tabby
you couldn't tabby
they couldn't tabby 	I couldn't be tabbying
you couldn't be tabbying
he couldn't be tabbying
we couldn't be tabbying
you couldn't be tabbying
they couldn't be tabbying	I couldn't have tabbied
you couldn't have tabbied
he couldn't have tabbied
we couldn't have tabbied
you couldn't have tabbied
they couldn't have tabbied	I couldn't have been tabbying
you couldn't have been tabbying
he couldn't have been tabbying
we couldn't have been tabbying
you couldn't have been tabbying
they couldn't have been tabbying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I tabby?
could you tabby?
could he tabby?
could we tabby?
could you tabby?
could they tabby? 	could I be tabbying?
could you be tabbying?
could he be tabbying?
could we be tabbying?
could you be tabbying?
could they be tabbying? 	could I have tabbied?
could you have tabbied?
could he have tabbied?
could we have tabbied?
could you have tabbied?
could they have tabbied? 	could I have been tabbying?
could you have been tabbying?
could he have been tabbying?
could we have been tabbying?
could you have been tabbying?
could they have been tabbying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I tabby?
couldn't you tabby?
couldn't he tabby?
couldn't we tabby?
couldn't you tabby?
couldn't they tabby? 	couldn't I be tabbying?
couldn't you be tabbying?
couldn't he be tabbying?
couldn't we be tabbying?
couldn't you be tabbying?
couldn't they be tabbying? 	couldn't I have tabbied?
couldn't you have tabbied?
couldn't he have tabbied?
couldn't we have tabbied?
couldn't you have tabbied?
couldn't they have tabbied? 	couldn't I have been tabbying?
couldn't you have been tabbying?
couldn't he have been tabbying?
couldn't we have been tabbying?
couldn't you have been tabbying?
couldn't they have been tabbying?