I'd be crumpling you'd be crumpling he'd be crumpling we'd be crumpling you'd be crumpling they'd be crumpling
Perfect
I should've crumpled you should've crumpled he should've crumpled we should've crumpled you should've crumpled they should've crumpled
V-ing perfect
I should've been crumpling you should've been crumpling he should've been crumpling we should've been crumpling you should've been crumpling they should've been crumpling
Negation
Simple form
I shouldn't crumple you shouldn't crumple he shouldn't crumple we shouldn't crumple you shouldn't crumple they shouldn't crumple
V-ing form
I shouldn't be crumpling you shouldn't be crumpling he shouldn't be crumpling we shouldn't be crumpling you shouldn't be crumpling they shouldn't be crumpling
Perfect
I shouldn't have crumpled you shouldn't have crumpled he shouldn't have crumpled we shouldn't have crumpled you shouldn't have crumpled they shouldn't have crumpled
V-ing perfect
I shouldn't have been crumpling you shouldn't have been crumpling he shouldn't have been crumpling we shouldn't have been crumpling you shouldn't have been crumpling they shouldn't have been crumpling
Interrogative form
Simple form
should I crumple? should you crumple? should he crumple? should we crumple? should you crumple? should they crumple?
V-ing form
should I be crumpling? should you be crumpling? should he be crumpling? should we be crumpling? should you be crumpling? should they be crumpling?
Perfect
should I have crumpled? should you have crumpled? should he have crumpled? should we have crumpled? should you have crumpled? should they have crumpled?
V-ing perfect
should I have been crumpling? should you have been crumpling? should he have been crumpling? should we have been crumpling? should you have been crumpling? should they have been crumpling?
Interro-negative form
Simple form
shouldn't I crumple? shouldn't you crumple? shouldn't he crumple? shouldn't we crumple? shouldn't you crumple? shouldn't they crumple?
V-ing form
shouldn't I be crumpling? shouldn't you be crumpling? shouldn't he be crumpling? shouldn't we be crumpling? shouldn't you be crumpling? shouldn't they be crumpling?
Perfect
shouldn't I have crumpled? shouldn't you have crumpled? shouldn't he have crumpled? shouldn't we have crumpled? shouldn't you have crumpled? shouldn't they have crumpled?
V-ing perfect
shouldn't I have been crumpling? shouldn't you have been crumpling? shouldn't he have been crumpling? shouldn't we have been crumpling? shouldn't you have been crumpling? shouldn't they have been crumpling?