I'd be crumpling you'd be crumpling she'd be crumpling we'd be crumpling you'd be crumpling they'd be crumpling
Perfect
I should've crumpled you should've crumpled she 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 she 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 she 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 she 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 she 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 she 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 she crumple? should we crumple? should you crumple? should they crumple?
V-ing form
should I be crumpling? should you be crumpling? should she be crumpling? should we be crumpling? should you be crumpling? should they be crumpling?
Perfect
should I have crumpled? should you have crumpled? should she 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 she 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 she 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 she 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 she 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 she have been crumpling? shouldn't we have been crumpling? shouldn't you have been crumpling? shouldn't they have been crumpling?