English verb conjugation
COULD UNTWIST

Regular verb: untwist - untwisted - untwisted

Affirmation

Simple form	V-ing form
I could untwist you could untwist she could untwist we could untwist you could untwist they could untwist	I could be untwisting you could be untwisting she could be untwisting we could be untwisting you could be untwisting they could be untwisting
Perfect	V-ing perfect
I could have untwisted you could have untwisted she could have untwisted we could have untwisted you could have untwisted they could have untwisted	I could have been untwisting you could have been untwisting she could have been untwisting we could have been untwisting you could have been untwisting they could have been untwisting

Negation

Simple form	V-ing form
I couldn't untwist you couldn't untwist she couldn't untwist we couldn't untwist you couldn't untwist they couldn't untwist	I couldn't be untwisting you couldn't be untwisting she couldn't be untwisting we couldn't be untwisting you couldn't be untwisting they couldn't be untwisting
Perfect	V-ing perfect
I couldn't have untwisted you couldn't have untwisted she couldn't have untwisted we couldn't have untwisted you couldn't have untwisted they couldn't have untwisted	I couldn't have been untwisting you couldn't have been untwisting she couldn't have been untwisting we couldn't have been untwisting you couldn't have been untwisting they couldn't have been untwisting

Interrogative form

Simple form	V-ing form
could I untwist? could you untwist? could she untwist? could we untwist? could you untwist? could they untwist?	could I be untwisting? could you be untwisting? could she be untwisting? could we be untwisting? could you be untwisting? could they be untwisting?
Perfect	V-ing perfect
could I have untwisted? could you have untwisted? could she have untwisted? could we have untwisted? could you have untwisted? could they have untwisted?	could I have been untwisting? could you have been untwisting? could she have been untwisting? could we have been untwisting? could you have been untwisting? could they have been untwisting?

Interro-negative form

Simple form	V-ing form
couldn't I untwist? couldn't you untwist? couldn't she untwist? couldn't we untwist? couldn't you untwist? couldn't they untwist?	couldn't I be untwisting? couldn't you be untwisting? couldn't she be untwisting? couldn't we be untwisting? couldn't you be untwisting? couldn't they be untwisting?
Perfect	V-ing perfect
couldn't I have untwisted? couldn't you have untwisted? couldn't she have untwisted? couldn't we have untwisted? couldn't you have untwisted? couldn't they have untwisted?	couldn't I have been untwisting? couldn't you have been untwisting? couldn't she have been untwisting? couldn't we have been untwisting? couldn't you have been untwisting? couldn't they have been untwisting?