should refasten
Regular verb: refasten - refastened- refastened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd refasten
you'd refasten
she'd refasten
we'd refasten
you'd refasten
they'd refasten 	I'd be refastening
you'd be refastening
she'd be refastening
we'd be refastening
you'd be refastening
they'd be refastening	I should've refastened
you should've refastened
she should've refastened
we should've refastened
you should've refastened
they should've refastened	I should've been refastening
you should've been refastening
she should've been refastening
we should've been refastening
you should've been refastening
they should've been refastening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't refasten
you shouldn't refasten
she shouldn't refasten
we shouldn't refasten
you shouldn't refasten
they shouldn't refasten 	I shouldn't be refastening
you shouldn't be refastening
she shouldn't be refastening
we shouldn't be refastening
you shouldn't be refastening
they shouldn't be refastening	I shouldn't have refastened
you shouldn't have refastened
she shouldn't have refastened
we shouldn't have refastened
you shouldn't have refastened
they shouldn't have refastened	I shouldn't have been refastening
you shouldn't have been refastening
she shouldn't have been refastening
we shouldn't have been refastening
you shouldn't have been refastening
they shouldn't have been refastening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I refasten?
should you refasten?
should she refasten?
should we refasten?
should you refasten?
should they refasten? 	should I be refastening?
should you be refastening?
should she be refastening?
should we be refastening?
should you be refastening?
should they be refastening? 	should I have refastened?
should you have refastened?
should she have refastened?
should we have refastened?
should you have refastened?
should they have refastened? 	should I have been refastening?
should you have been refastening?
should she have been refastening?
should we have been refastening?
should you have been refastening?
should they have been refastening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I refasten?
shouldn't you refasten?
shouldn't she refasten?
shouldn't we refasten?
shouldn't you refasten?
shouldn't they refasten? 	shouldn't I be refastening?
shouldn't you be refastening?
shouldn't she be refastening?
shouldn't we be refastening?
shouldn't you be refastening?
shouldn't they be refastening? 	shouldn't I have refastened?
shouldn't you have refastened?
shouldn't she have refastened?
shouldn't we have refastened?
shouldn't you have refastened?
shouldn't they have refastened? 	shouldn't I have been refastening?
shouldn't you have been refastening?
shouldn't she have been refastening?
shouldn't we have been refastening?
shouldn't you have been refastening?
shouldn't they have been refastening?