could untruss
Regular verb: untruss - untrussed- untrussed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could untruss
you could untruss
he could untruss
we could untruss
you could untruss
they could untruss 	I could be untrussing
you could be untrussing
he could be untrussing
we could be untrussing
you could be untrussing
they could be untrussing	I could have untrussed
you could have untrussed
he could have untrussed
we could have untrussed
you could have untrussed
they could have untrussed	I could have been untrussing
you could have been untrussing
he could have been untrussing
we could have been untrussing
you could have been untrussing
they could have been untrussing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't untruss
you couldn't untruss
he couldn't untruss
we couldn't untruss
you couldn't untruss
they couldn't untruss 	I couldn't be untrussing
you couldn't be untrussing
he couldn't be untrussing
we couldn't be untrussing
you couldn't be untrussing
they couldn't be untrussing	I couldn't have untrussed
you couldn't have untrussed
he couldn't have untrussed
we couldn't have untrussed
you couldn't have untrussed
they couldn't have untrussed	I couldn't have been untrussing
you couldn't have been untrussing
he couldn't have been untrussing
we couldn't have been untrussing
you couldn't have been untrussing
they couldn't have been untrussing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I untruss?
could you untruss?
could he untruss?
could we untruss?
could you untruss?
could they untruss? 	could I be untrussing?
could you be untrussing?
could he be untrussing?
could we be untrussing?
could you be untrussing?
could they be untrussing? 	could I have untrussed?
could you have untrussed?
could he have untrussed?
could we have untrussed?
could you have untrussed?
could they have untrussed? 	could I have been untrussing?
could you have been untrussing?
could he have been untrussing?
could we have been untrussing?
could you have been untrussing?
could they have been untrussing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I untruss?
couldn't you untruss?
couldn't he untruss?
couldn't we untruss?
couldn't you untruss?
couldn't they untruss? 	couldn't I be untrussing?
couldn't you be untrussing?
couldn't he be untrussing?
couldn't we be untrussing?
couldn't you be untrussing?
couldn't they be untrussing? 	couldn't I have untrussed?
couldn't you have untrussed?
couldn't he have untrussed?
couldn't we have untrussed?
couldn't you have untrussed?
couldn't they have untrussed? 	couldn't I have been untrussing?
couldn't you have been untrussing?
couldn't he have been untrussing?
couldn't we have been untrussing?
couldn't you have been untrussing?
couldn't they have been untrussing?