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