I'd be corrugating you'd be corrugating she'd be corrugating we'd be corrugating you'd be corrugating they'd be corrugating
Perfect
I should've corrugated you should've corrugated she should've corrugated we should've corrugated you should've corrugated they should've corrugated
V-ing perfect
I should've been corrugating you should've been corrugating she should've been corrugating we should've been corrugating you should've been corrugating they should've been corrugating
Negation
Simple form
I shouldn't corrugate you shouldn't corrugate she shouldn't corrugate we shouldn't corrugate you shouldn't corrugate they shouldn't corrugate
V-ing form
I shouldn't be corrugating you shouldn't be corrugating she shouldn't be corrugating we shouldn't be corrugating you shouldn't be corrugating they shouldn't be corrugating
Perfect
I shouldn't have corrugated you shouldn't have corrugated she shouldn't have corrugated we shouldn't have corrugated you shouldn't have corrugated they shouldn't have corrugated
V-ing perfect
I shouldn't have been corrugating you shouldn't have been corrugating she shouldn't have been corrugating we shouldn't have been corrugating you shouldn't have been corrugating they shouldn't have been corrugating
Interrogative form
Simple form
should I corrugate? should you corrugate? should she corrugate? should we corrugate? should you corrugate? should they corrugate?
V-ing form
should I be corrugating? should you be corrugating? should she be corrugating? should we be corrugating? should you be corrugating? should they be corrugating?
Perfect
should I have corrugated? should you have corrugated? should she have corrugated? should we have corrugated? should you have corrugated? should they have corrugated?
V-ing perfect
should I have been corrugating? should you have been corrugating? should she have been corrugating? should we have been corrugating? should you have been corrugating? should they have been corrugating?
Interro-negative form
Simple form
shouldn't I corrugate? shouldn't you corrugate? shouldn't she corrugate? shouldn't we corrugate? shouldn't you corrugate? shouldn't they corrugate?
V-ing form
shouldn't I be corrugating? shouldn't you be corrugating? shouldn't she be corrugating? shouldn't we be corrugating? shouldn't you be corrugating? shouldn't they be corrugating?
Perfect
shouldn't I have corrugated? shouldn't you have corrugated? shouldn't she have corrugated? shouldn't we have corrugated? shouldn't you have corrugated? shouldn't they have corrugated?
V-ing perfect
shouldn't I have been corrugating? shouldn't you have been corrugating? shouldn't she have been corrugating? shouldn't we have been corrugating? shouldn't you have been corrugating? shouldn't they have been corrugating?