should half-mast
Regular verb: half-mast - half-masted- half-masted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd half-mast
you'd half-mast
he'd half-mast
we'd half-mast
you'd half-mast
they'd half-mast 	I'd be half-masting
you'd be half-masting
he'd be half-masting
we'd be half-masting
you'd be half-masting
they'd be half-masting	I should've half-masted
you should've half-masted
he should've half-masted
we should've half-masted
you should've half-masted
they should've half-masted	I should've been half-masting
you should've been half-masting
he should've been half-masting
we should've been half-masting
you should've been half-masting
they should've been half-masting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't half-mast
you shouldn't half-mast
he shouldn't half-mast
we shouldn't half-mast
you shouldn't half-mast
they shouldn't half-mast 	I shouldn't be half-masting
you shouldn't be half-masting
he shouldn't be half-masting
we shouldn't be half-masting
you shouldn't be half-masting
they shouldn't be half-masting	I shouldn't have half-masted
you shouldn't have half-masted
he shouldn't have half-masted
we shouldn't have half-masted
you shouldn't have half-masted
they shouldn't have half-masted	I shouldn't have been half-masting
you shouldn't have been half-masting
he shouldn't have been half-masting
we shouldn't have been half-masting
you shouldn't have been half-masting
they shouldn't have been half-masting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I half-mast?
should you half-mast?
should he half-mast?
should we half-mast?
should you half-mast?
should they half-mast? 	should I be half-masting?
should you be half-masting?
should he be half-masting?
should we be half-masting?
should you be half-masting?
should they be half-masting? 	should I have half-masted?
should you have half-masted?
should he have half-masted?
should we have half-masted?
should you have half-masted?
should they have half-masted? 	should I have been half-masting?
should you have been half-masting?
should he have been half-masting?
should we have been half-masting?
should you have been half-masting?
should they have been half-masting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I half-mast?
shouldn't you half-mast?
shouldn't he half-mast?
shouldn't we half-mast?
shouldn't you half-mast?
shouldn't they half-mast? 	shouldn't I be half-masting?
shouldn't you be half-masting?
shouldn't he be half-masting?
shouldn't we be half-masting?
shouldn't you be half-masting?
shouldn't they be half-masting? 	shouldn't I have half-masted?
shouldn't you have half-masted?
shouldn't he have half-masted?
shouldn't we have half-masted?
shouldn't you have half-masted?
shouldn't they have half-masted? 	shouldn't I have been half-masting?
shouldn't you have been half-masting?
shouldn't he have been half-masting?
shouldn't we have been half-masting?
shouldn't you have been half-masting?
shouldn't they have been half-masting?