English verb conjugation
COULD COMPOST

Regular verb: compost - composted - composted

Affirmation

Simple form	V-ing form
I could compost you could compost he could compost we could compost you could compost they could compost	I could be composting you could be composting he could be composting we could be composting you could be composting they could be composting
Perfect	V-ing perfect
I could have composted you could have composted he could have composted we could have composted you could have composted they could have composted	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

Negation

Simple form	V-ing form
I could not compost you could not compost he could not compost we could not compost you could not compost they could not compost	I could not be composting you could not be composting he could not be composting we could not be composting you could not be composting they could not be composting
Perfect	V-ing perfect
I could not have composted you could not have composted he could not have composted we could not have composted you could not have composted they could not have composted	I could not have been composting you could not have been composting he could not have been composting we could not have been composting you could not have been composting they could not have been composting

Interrogative form

Simple form	V-ing form
could I compost? could you compost? could he compost? could we compost? could you compost? could they compost?	could I be composting? could you be composting? could he be composting? could we be composting? could you be composting? could they be composting?
Perfect	V-ing perfect
could I have composted? could you have composted? could he have composted? could we have composted? could you have composted? could they have composted?	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?

Interro-negative form

Simple form	V-ing form
could I not compost? could you not compost? could he not compost? could we not compost? could you not compost? could they not compost?	could I not be composting? could you not be composting? could he not be composting? could we not be composting? could you not be composting? could they not be composting?
Perfect	V-ing perfect
could I not have composted? could you not have composted? could he not have composted? could we not have composted? could you not have composted? could they not have composted?	could I not have been composting? could you not have been composting? could he not have been composting? could we not have been composting? could you not have been composting? could they not have been composting?