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