I ought to untwist you ought to untwist he ought to untwist we ought to untwist you ought to untwist they ought to untwist
V-ing form
I ought to be untwisting you ought to be untwisting he ought to be untwisting we ought to be untwisting you ought to be untwisting they ought to be untwisting
Perfect
I ought to have untwisted you ought to have untwisted he ought to have untwisted we ought to have untwisted you ought to have untwisted they ought to have untwisted
V-ing perfect
I ought to have been untwisting you ought to have been untwisting he ought to have been untwisting we ought to have been untwisting you ought to have been untwisting they ought to have been untwisting
Negation
Simple form
I ought not to untwist you ought not to untwist he ought not to untwist we ought not to untwist you ought not to untwist they ought not to untwist
V-ing form
I ought not to untwisting you ought not to untwisting he ought not to untwisting we ought not to untwisting you ought not to untwisting they ought not to untwisting
Perfect
I ought not to have untwisted you ought not to have untwisted he ought not to have untwisted we ought not to have untwisted you ought not to have untwisted they ought not to have untwisted
V-ing perfect
I ought not to have been untwisting you ought not to have been untwisting he ought not to have been untwisting we ought not to have been untwisting you ought not to have been untwisting they ought not to have been untwisting
Interrogative form
Simple form
ought to I untwist? ought to you untwist? ought to he untwist? ought to we untwist? ought to you untwist? ought to they untwist?
V-ing form
ought to I be untwisting? ought to you be untwisting? ought to he be untwisting? ought to we be untwisting? ought to you be untwisting? ought to they be untwisting?
Perfect
ought to I have untwisted? ought to you have untwisted? ought to he have untwisted? ought to we have untwisted? ought to you have untwisted? ought to they have untwisted?
V-ing perfect
ought to I have been untwisting? ought to you have been untwisting? ought to he have been untwisting? ought to we have been untwisting? ought to you have been untwisting? ought to they have been untwisting?
Interro-negative form
Simple form
ought I not to untwist? ought you not to untwist? ought he not to untwist? ought we not to untwist? ought you not to untwist? ought they not to untwist?
V-ing form
ought I not to be untwisting? ought you not to be untwisting? ought he not to be untwisting? ought we not to be untwisting? ought you not to be untwisting? ought they not to be untwisting?
Perfect
ought I not to have untwisted? ought you not to have untwisted? ought he not to have untwisted? ought we not to have untwisted? ought you not to have untwisted? ought they not to have untwisted?
V-ing perfect
ought I not to have been untwisting? ought you not to have been untwisting? ought he not to have been untwisting? ought we not to have been untwisting? ought you not to have been untwisting? ought they not to have been untwisting?