should untwine
Regular verb: untwine - untwined- untwined

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not untwine
you should not untwine
she should not untwine
we should not untwine
you should not untwine
they should not untwine 	I should not be untwining
you should not be untwining
she should not be untwining
we should not be untwining
you should not be untwining
they should not be untwining	I should not have untwined
you should not have untwined
she should not have untwined
we should not have untwined
you should not have untwined
they should not have untwined	I should not have been untwining
you should not have been untwining
she should not have been untwining
we should not have been untwining
you should not have been untwining
they should not have been untwining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I untwine?
should you untwine?
should she untwine?
should we untwine?
should you untwine?
should they untwine? 	should I be untwining?
should you be untwining?
should she be untwining?
should we be untwining?
should you be untwining?
should they be untwining? 	should I have untwined?
should you have untwined?
should she 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 she 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 	Perfect 	V-ing perfect 	
should I not untwine?
should you not untwine?
should she not untwine?
should we not untwine?
should you not untwine?
should they not untwine? 	should I not be untwining?
should you not be untwining?
should she not be untwining?
should we not be untwining?
should you not be untwining?
should they not be untwining? 	should I not have untwined?
should you not have untwined?
should she not have untwined?
should we not have untwined?
should you not have untwined?
should they not have untwined? 	should I not have been untwining?
should you not have been untwining?
should she not have been untwining?
should we not have been untwining?
should you not have been untwining?
should they not have been untwining?