can untwine
Regular verb: untwine - untwined- untwined

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

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