Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could mop. wipe you could mop. wipe she could mop. wipe we could mop. wipe you could mop. wipe they could mop. wipe
V-ing form
I could be mop. wiping you could be mop. wiping she could be mop. wiping we could be mop. wiping you could be mop. wiping they could be mop. wiping
Perfect
I could have mop. wiped you could have mop. wiped she could have mop. wiped we could have mop. wiped you could have mop. wiped they could have mop. wiped
V-ing perfect
I could have been mop. wiping you could have been mop. wiping she could have been mop. wiping we could have been mop. wiping you could have been mop. wiping they could have been mop. wiping
Negation
Simple form
I could not mop. wipe you could not mop. wipe she could not mop. wipe we could not mop. wipe you could not mop. wipe they could not mop. wipe
V-ing form
I could not be mop. wiping you could not be mop. wiping she could not be mop. wiping we could not be mop. wiping you could not be mop. wiping they could not be mop. wiping
Perfect
I could not have mop. wiped you could not have mop. wiped she could not have mop. wiped we could not have mop. wiped you could not have mop. wiped they could not have mop. wiped
V-ing perfect
I could not have been mop. wiping you could not have been mop. wiping she could not have been mop. wiping we could not have been mop. wiping you could not have been mop. wiping they could not have been mop. wiping
Interrogative form
Simple form
could I mop. wipe? could you mop. wipe? could she mop. wipe? could we mop. wipe? could you mop. wipe? could they mop. wipe?
V-ing form
could I be mop. wiping? could you be mop. wiping? could she be mop. wiping? could we be mop. wiping? could you be mop. wiping? could they be mop. wiping?
Perfect
could I have mop. wiped? could you have mop. wiped? could she have mop. wiped? could we have mop. wiped? could you have mop. wiped? could they have mop. wiped?
V-ing perfect
could I have been mop. wiping? could you have been mop. wiping? could she have been mop. wiping? could we have been mop. wiping? could you have been mop. wiping? could they have been mop. wiping?
Interro-negative form
Simple form
could I not mop. wipe? could you not mop. wipe? could she not mop. wipe? could we not mop. wipe? could you not mop. wipe? could they not mop. wipe?
V-ing form
could I not be mop. wiping? could you not be mop. wiping? could she not be mop. wiping? could we not be mop. wiping? could you not be mop. wiping? could they not be mop. wiping?
Perfect
could I not have mop. wiped? could you not have mop. wiped? could she not have mop. wiped? could we not have mop. wiped? could you not have mop. wiped? could they not have mop. wiped?
V-ing perfect
could I not have been mop. wiping? could you not have been mop. wiping? could she not have been mop. wiping? could we not have been mop. wiping? could you not have been mop. wiping? could they not have been mop. wiping?