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