should unsheathe
Regular verb: unsheathe - unsheathed- unsheathed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd unsheathe
you'd unsheathe
he'd unsheathe
we'd unsheathe
you'd unsheathe
they'd unsheathe 	I'd be unsheathing
you'd be unsheathing
he'd be unsheathing
we'd be unsheathing
you'd be unsheathing
they'd be unsheathing	I should've unsheathed
you should've unsheathed
he should've unsheathed
we should've unsheathed
you should've unsheathed
they should've unsheathed	I should've been unsheathing
you should've been unsheathing
he should've been unsheathing
we should've been unsheathing
you should've been unsheathing
they should've been unsheathing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't unsheathe
you shouldn't unsheathe
he shouldn't unsheathe
we shouldn't unsheathe
you shouldn't unsheathe
they shouldn't unsheathe 	I shouldn't be unsheathing
you shouldn't be unsheathing
he shouldn't be unsheathing
we shouldn't be unsheathing
you shouldn't be unsheathing
they shouldn't be unsheathing	I shouldn't have unsheathed
you shouldn't have unsheathed
he shouldn't have unsheathed
we shouldn't have unsheathed
you shouldn't have unsheathed
they shouldn't have unsheathed	I shouldn't have been unsheathing
you shouldn't have been unsheathing
he shouldn't have been unsheathing
we shouldn't have been unsheathing
you shouldn't have been unsheathing
they shouldn't have been unsheathing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I unsheathe?
should you unsheathe?
should he unsheathe?
should we unsheathe?
should you unsheathe?
should they unsheathe? 	should I be unsheathing?
should you be unsheathing?
should he be unsheathing?
should we be unsheathing?
should you be unsheathing?
should they be unsheathing? 	should I have unsheathed?
should you have unsheathed?
should he have unsheathed?
should we have unsheathed?
should you have unsheathed?
should they have unsheathed? 	should I have been unsheathing?
should you have been unsheathing?
should he have been unsheathing?
should we have been unsheathing?
should you have been unsheathing?
should they have been unsheathing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I unsheathe?
shouldn't you unsheathe?
shouldn't he unsheathe?
shouldn't we unsheathe?
shouldn't you unsheathe?
shouldn't they unsheathe? 	shouldn't I be unsheathing?
shouldn't you be unsheathing?
shouldn't he be unsheathing?
shouldn't we be unsheathing?
shouldn't you be unsheathing?
shouldn't they be unsheathing? 	shouldn't I have unsheathed?
shouldn't you have unsheathed?
shouldn't he have unsheathed?
shouldn't we have unsheathed?
shouldn't you have unsheathed?
shouldn't they have unsheathed? 	shouldn't I have been unsheathing?
shouldn't you have been unsheathing?
shouldn't he have been unsheathing?
shouldn't we have been unsheathing?
shouldn't you have been unsheathing?
shouldn't they have been unsheathing?