I should curd you should curd she should curd we should curd you should curd they should curd
V-ing form
I should be curding you should be curding she should be curding we should be curding you should be curding they should be curding
Perfect
I should have curded you should have curded she should have curded we should have curded you should have curded they should have curded
V-ing perfect
I should have been curding you should have been curding she should have been curding we should have been curding you should have been curding they should have been curding
Negation
Simple form
I should not curd you should not curd she should not curd we should not curd you should not curd they should not curd
V-ing form
I should not be curding you should not be curding she should not be curding we should not be curding you should not be curding they should not be curding
Perfect
I should not have curded you should not have curded she should not have curded we should not have curded you should not have curded they should not have curded
V-ing perfect
I should not have been curding you should not have been curding she should not have been curding we should not have been curding you should not have been curding they should not have been curding
Interrogative form
Simple form
should I curd? should you curd? should she curd? should we curd? should you curd? should they curd?
V-ing form
should I be curding? should you be curding? should she be curding? should we be curding? should you be curding? should they be curding?
Perfect
should I have curded? should you have curded? should she have curded? should we have curded? should you have curded? should they have curded?
V-ing perfect
should I have been curding? should you have been curding? should she have been curding? should we have been curding? should you have been curding? should they have been curding?
Interro-negative form
Simple form
should I not curd? should you not curd? should she not curd? should we not curd? should you not curd? should they not curd?
V-ing form
should I not be curding? should you not be curding? should she not be curding? should we not be curding? should you not be curding? should they not be curding?
Perfect
should I not have curded? should you not have curded? should she not have curded? should we not have curded? should you not have curded? should they not have curded?
V-ing perfect
should I not have been curding? should you not have been curding? should she not have been curding? should we not have been curding? should you not have been curding? should they not have been curding?