I could tell you could tell he could tell we could tell you could tell they could tell
Forma con V-ing
I could be telling you could be telling he could be telling we could be telling you could be telling they could be telling
Perfecto
I could have told you could have told he could have told we could have told you could have told they could have told
Perfecto con V-ing
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
Negación
Forma simple
I couldn't tell you couldn't tell he couldn't tell we couldn't tell you couldn't tell they couldn't tell
Forma con V-ing
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
Perfecto
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
Perfecto con V-ing
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
Forma interrogativa
Forma simple
could I tell? could you tell? could he tell? could we tell? could you tell? could they tell?
Forma con V-ing
could I be telling? could you be telling? could he be telling? could we be telling? could you be telling? could they be telling?
Perfecto
could I have told? could you have told? could he have told? could we have told? could you have told? could they have told?
Perfecto con V-ing
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?
Forma interro-negativa
Forma simple
couldn't I tell? couldn't you tell? couldn't he tell? couldn't we tell? couldn't you tell? couldn't they tell?
Forma con V-ing
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?
Perfecto
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?
Perfecto con V-ing
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?