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