English verb conjugation
SHOULD UNTWINE

Regular verb: untwine - untwined - untwined

Affirmation

Simple form	V-ing form
I'd untwine you'd untwine he'd untwine we'd untwine you'd untwine they'd untwine	I'd be untwining you'd be untwining he'd be untwining we'd be untwining you'd be untwining they'd be untwining
Perfect	V-ing perfect
I should've untwined you should've untwined he should've untwined we should've untwined you should've untwined they should've untwined	I should've been untwining you should've been untwining he should've been untwining we should've been untwining you should've been untwining they should've been untwining

Negation

Simple form	V-ing form
I shouldn't untwine you shouldn't untwine he shouldn't untwine we shouldn't untwine you shouldn't untwine they shouldn't untwine	I shouldn't be untwining you shouldn't be untwining he shouldn't be untwining we shouldn't be untwining you shouldn't be untwining they shouldn't be untwining
Perfect	V-ing perfect
I shouldn't have untwined you shouldn't have untwined he shouldn't have untwined we shouldn't have untwined you shouldn't have untwined they shouldn't have untwined	I shouldn't have been untwining you shouldn't have been untwining he shouldn't have been untwining we shouldn't have been untwining you shouldn't have been untwining they shouldn't have been untwining

Interrogative form

Simple form	V-ing form
should I untwine? should you untwine? should he untwine? should we untwine? should you untwine? should they untwine?	should I be untwining? should you be untwining? should he be untwining? should we be untwining? should you be untwining? should they be untwining?
Perfect	V-ing perfect
should I have untwined? should you have untwined? should he have untwined? should we have untwined? should you have untwined? should they have untwined?	should I have been untwining? should you have been untwining? should he have been untwining? should we have been untwining? should you have been untwining? should they have been untwining?

Interro-negative form

Simple form	V-ing form
shouldn't I untwine? shouldn't you untwine? shouldn't he untwine? shouldn't we untwine? shouldn't you untwine? shouldn't they untwine?	shouldn't I be untwining? shouldn't you be untwining? shouldn't he be untwining? shouldn't we be untwining? shouldn't you be untwining? shouldn't they be untwining?
Perfect	V-ing perfect
shouldn't I have untwined? shouldn't you have untwined? shouldn't he have untwined? shouldn't we have untwined? shouldn't you have untwined? shouldn't they have untwined?	shouldn't I have been untwining? shouldn't you have been untwining? shouldn't he have been untwining? shouldn't we have been untwining? shouldn't you have been untwining? shouldn't they have been untwining?