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