should tissue
Regular verb: tissue - tissued- tissued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd tissue
you'd tissue
she'd tissue
we'd tissue
you'd tissue
they'd tissue 	I'd be tissuing
you'd be tissuing
she'd be tissuing
we'd be tissuing
you'd be tissuing
they'd be tissuing	I should've tissued
you should've tissued
she should've tissued
we should've tissued
you should've tissued
they should've tissued	I should've been tissuing
you should've been tissuing
she should've been tissuing
we should've been tissuing
you should've been tissuing
they should've been tissuing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't tissue
you shouldn't tissue
she shouldn't tissue
we shouldn't tissue
you shouldn't tissue
they shouldn't tissue 	I shouldn't be tissuing
you shouldn't be tissuing
she shouldn't be tissuing
we shouldn't be tissuing
you shouldn't be tissuing
they shouldn't be tissuing	I shouldn't have tissued
you shouldn't have tissued
she shouldn't have tissued
we shouldn't have tissued
you shouldn't have tissued
they shouldn't have tissued	I shouldn't have been tissuing
you shouldn't have been tissuing
she shouldn't have been tissuing
we shouldn't have been tissuing
you shouldn't have been tissuing
they shouldn't have been tissuing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I tissue?
should you tissue?
should she tissue?
should we tissue?
should you tissue?
should they tissue? 	should I be tissuing?
should you be tissuing?
should she be tissuing?
should we be tissuing?
should you be tissuing?
should they be tissuing? 	should I have tissued?
should you have tissued?
should she have tissued?
should we have tissued?
should you have tissued?
should they have tissued? 	should I have been tissuing?
should you have been tissuing?
should she have been tissuing?
should we have been tissuing?
should you have been tissuing?
should they have been tissuing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I tissue?
shouldn't you tissue?
shouldn't she tissue?
shouldn't we tissue?
shouldn't you tissue?
shouldn't they tissue? 	shouldn't I be tissuing?
shouldn't you be tissuing?
shouldn't she be tissuing?
shouldn't we be tissuing?
shouldn't you be tissuing?
shouldn't they be tissuing? 	shouldn't I have tissued?
shouldn't you have tissued?
shouldn't she have tissued?
shouldn't we have tissued?
shouldn't you have tissued?
shouldn't they have tissued? 	shouldn't I have been tissuing?
shouldn't you have been tissuing?
shouldn't she have been tissuing?
shouldn't we have been tissuing?
shouldn't you have been tissuing?
shouldn't they have been tissuing?