can unshell
Regular verb: unshell - unshelled- unshelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can unshell
you can unshell
she can unshell
we can unshell
you can unshell
they can unshell 	I can be unshelling
you can be unshelling
she can be unshelling
we can be unshelling
you can be unshelling
they can be unshelling	I can have unshelled
you can have unshelled
she can have unshelled
we can have unshelled
you can have unshelled
they can have unshelled	I can have been unshelling
you can have been unshelling
she can have been unshelling
we can have been unshelling
you can have been unshelling
they can have been unshelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't unshell
you can't unshell
she can't unshell
we can't unshell
you can't unshell
they can't unshell 	I can't be unshelling
you can't be unshelling
she can't be unshelling
we can't be unshelling
you can't be unshelling
they can't be unshelling	I can't have unshelled
you can't have unshelled
she can't have unshelled
we can't have unshelled
you can't have unshelled
they can't have unshelled	I can't have been unshelling
you can't have been unshelling
she can't have been unshelling
we can't have been unshelling
you can't have been unshelling
they can't have been unshelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I unshell?
can you unshell?
can she unshell?
can we unshell?
can you unshell?
can they unshell? 	can I be unshelling?
can you be unshelling?
can she be unshelling?
can we be unshelling?
can you be unshelling?
can they be unshelling? 	can I have unshelled?
can you have unshelled?
can she have unshelled?
can we have unshelled?
can you have unshelled?
can they have unshelled? 	can I have been unshelling?
can you have been unshelling?
can she have been unshelling?
can we have been unshelling?
can you have been unshelling?
can they have been unshelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I unshell?
can't you unshell?
can't she unshell?
can't we unshell?
can't you unshell?
can't they unshell? 	can't I be unshelling?
can't you be unshelling?
can't she be unshelling?
can't we be unshelling?
can't you be unshelling?
can't they be unshelling? 	can't I have unshelled?
can't you have unshelled?
can't she have unshelled?
can't we have unshelled?
can't you have unshelled?
can't they have unshelled? 	can't I have been unshelling?
can't you have been unshelling?
can't she have been unshelling?
can't we have been unshelling?
can't you have been unshelling?
can't they have been unshelling?