could unfolc
Regular verb: unfolc - unfolced- unfolced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could unfolc
you could unfolc
she could unfolc
we could unfolc
you could unfolc
they could unfolc 	I could be unfolcing
you could be unfolcing
she could be unfolcing
we could be unfolcing
you could be unfolcing
they could be unfolcing	I could have unfolced
you could have unfolced
she could have unfolced
we could have unfolced
you could have unfolced
they could have unfolced	I could have been unfolcing
you could have been unfolcing
she could have been unfolcing
we could have been unfolcing
you could have been unfolcing
they could have been unfolcing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't unfolc
you couldn't unfolc
she couldn't unfolc
we couldn't unfolc
you couldn't unfolc
they couldn't unfolc 	I couldn't be unfolcing
you couldn't be unfolcing
she couldn't be unfolcing
we couldn't be unfolcing
you couldn't be unfolcing
they couldn't be unfolcing	I couldn't have unfolced
you couldn't have unfolced
she couldn't have unfolced
we couldn't have unfolced
you couldn't have unfolced
they couldn't have unfolced	I couldn't have been unfolcing
you couldn't have been unfolcing
she couldn't have been unfolcing
we couldn't have been unfolcing
you couldn't have been unfolcing
they couldn't have been unfolcing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I unfolc?
could you unfolc?
could she unfolc?
could we unfolc?
could you unfolc?
could they unfolc? 	could I be unfolcing?
could you be unfolcing?
could she be unfolcing?
could we be unfolcing?
could you be unfolcing?
could they be unfolcing? 	could I have unfolced?
could you have unfolced?
could she have unfolced?
could we have unfolced?
could you have unfolced?
could they have unfolced? 	could I have been unfolcing?
could you have been unfolcing?
could she have been unfolcing?
could we have been unfolcing?
could you have been unfolcing?
could they have been unfolcing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I unfolc?
couldn't you unfolc?
couldn't she unfolc?
couldn't we unfolc?
couldn't you unfolc?
couldn't they unfolc? 	couldn't I be unfolcing?
couldn't you be unfolcing?
couldn't she be unfolcing?
couldn't we be unfolcing?
couldn't you be unfolcing?
couldn't they be unfolcing? 	couldn't I have unfolced?
couldn't you have unfolced?
couldn't she have unfolced?
couldn't we have unfolced?
couldn't you have unfolced?
couldn't they have unfolced? 	couldn't I have been unfolcing?
couldn't you have been unfolcing?
couldn't she have been unfolcing?
couldn't we have been unfolcing?
couldn't you have been unfolcing?
couldn't they have been unfolcing?