I could help you could help he could help we could help you could help they could help
Forma con V-ing
I could be helping you could be helping he could be helping we could be helping you could be helping they could be helping
Perfecto
I could have helped you could have helped he could have helped we could have helped you could have helped they could have helped
Perfecto con V-ing
I could have been helping you could have been helping he could have been helping we could have been helping you could have been helping they could have been helping
Negación
Forma simple
I couldn't help you couldn't help he couldn't help we couldn't help you couldn't help they couldn't help
Forma con V-ing
I couldn't be helping you couldn't be helping he couldn't be helping we couldn't be helping you couldn't be helping they couldn't be helping
Perfecto
I couldn't have helped you couldn't have helped he couldn't have helped we couldn't have helped you couldn't have helped they couldn't have helped
Perfecto con V-ing
I couldn't have been helping you couldn't have been helping he couldn't have been helping we couldn't have been helping you couldn't have been helping they couldn't have been helping
Forma interrogativa
Forma simple
could I help? could you help? could he help? could we help? could you help? could they help?
Forma con V-ing
could I be helping? could you be helping? could he be helping? could we be helping? could you be helping? could they be helping?
Perfecto
could I have helped? could you have helped? could he have helped? could we have helped? could you have helped? could they have helped?
Perfecto con V-ing
could I have been helping? could you have been helping? could he have been helping? could we have been helping? could you have been helping? could they have been helping?
Forma interro-negativa
Forma simple
couldn't I help? couldn't you help? couldn't he help? couldn't we help? couldn't you help? couldn't they help?
Forma con V-ing
couldn't I be helping? couldn't you be helping? couldn't he be helping? couldn't we be helping? couldn't you be helping? couldn't they be helping?
Perfecto
couldn't I have helped? couldn't you have helped? couldn't he have helped? couldn't we have helped? couldn't you have helped? couldn't they have helped?
Perfecto con V-ing
couldn't I have been helping? couldn't you have been helping? couldn't he have been helping? couldn't we have been helping? couldn't you have been helping? couldn't they have been helping?