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