could tell
Irregular verb: tell - told- told

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could tell
you could tell
he could tell
we could tell
you could tell
they could tell 	I could be telling
you could be telling
he could be telling
we could be telling
you could be telling
they could be telling	I could have told
you could have told
he could have told
we could have told
you could have told
they could have told	I could have been telling
you could have been telling
he could have been telling
we could have been telling
you could have been telling
they could have been telling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't tell
you couldn't tell
he couldn't tell
we couldn't tell
you couldn't tell
they couldn't tell 	I couldn't be telling
you couldn't be telling
he couldn't be telling
we couldn't be telling
you couldn't be telling
they couldn't be telling	I couldn't have told
you couldn't have told
he couldn't have told
we couldn't have told
you couldn't have told
they couldn't have told	I couldn't have been telling
you couldn't have been telling
he couldn't have been telling
we couldn't have been telling
you couldn't have been telling
they couldn't have been telling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I tell?
could you tell?
could he tell?
could we tell?
could you tell?
could they tell? 	could I be telling?
could you be telling?
could he be telling?
could we be telling?
could you be telling?
could they be telling? 	could I have told?
could you have told?
could he have told?
could we have told?
could you have told?
could they have told? 	could I have been telling?
could you have been telling?
could he have been telling?
could we have been telling?
could you have been telling?
could they have been telling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I tell?
couldn't you tell?
couldn't he tell?
couldn't we tell?
couldn't you tell?
couldn't they tell? 	couldn't I be telling?
couldn't you be telling?
couldn't he be telling?
couldn't we be telling?
couldn't you be telling?
couldn't they be telling? 	couldn't I have told?
couldn't you have told?
couldn't he have told?
couldn't we have told?
couldn't you have told?
couldn't they have told? 	couldn't I have been telling?
couldn't you have been telling?
couldn't he have been telling?
couldn't we have been telling?
couldn't you have been telling?
couldn't they have been telling?