can untwine
Regular verb: untwine - untwined- untwined

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

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

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I untwine?
can you untwine?
can she untwine?
can we untwine?
can you untwine?
can they untwine? 	can I be untwining?
can you be untwining?
can she be untwining?
can we be untwining?
can you be untwining?
can they be untwining? 	can I have untwined?
can you have untwined?
can she have untwined?
can we have untwined?
can you have untwined?
can they have untwined? 	can I have been untwining?
can you have been untwining?
can she have been untwining?
can we have been untwining?
can you have been untwining?
can they have been untwining? 	

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