I'd be nabbing you'd be nabbing he'd be nabbing we'd be nabbing you'd be nabbing they'd be nabbing
Perfect
I should've nabbed you should've nabbed he should've nabbed we should've nabbed you should've nabbed they should've nabbed
V-ing perfect
I should've been nabbing you should've been nabbing he should've been nabbing we should've been nabbing you should've been nabbing they should've been nabbing
Negation
Simple form
I shouldn't nab you shouldn't nab he shouldn't nab we shouldn't nab you shouldn't nab they shouldn't nab
V-ing form
I shouldn't be nabbing you shouldn't be nabbing he shouldn't be nabbing we shouldn't be nabbing you shouldn't be nabbing they shouldn't be nabbing
Perfect
I shouldn't have nabbed you shouldn't have nabbed he shouldn't have nabbed we shouldn't have nabbed you shouldn't have nabbed they shouldn't have nabbed
V-ing perfect
I shouldn't have been nabbing you shouldn't have been nabbing he shouldn't have been nabbing we shouldn't have been nabbing you shouldn't have been nabbing they shouldn't have been nabbing
Interrogative form
Simple form
should I nab? should you nab? should he nab? should we nab? should you nab? should they nab?
V-ing form
should I be nabbing? should you be nabbing? should he be nabbing? should we be nabbing? should you be nabbing? should they be nabbing?
Perfect
should I have nabbed? should you have nabbed? should he have nabbed? should we have nabbed? should you have nabbed? should they have nabbed?
V-ing perfect
should I have been nabbing? should you have been nabbing? should he have been nabbing? should we have been nabbing? should you have been nabbing? should they have been nabbing?
Interro-negative form
Simple form
shouldn't I nab? shouldn't you nab? shouldn't he nab? shouldn't we nab? shouldn't you nab? shouldn't they nab?
V-ing form
shouldn't I be nabbing? shouldn't you be nabbing? shouldn't he be nabbing? shouldn't we be nabbing? shouldn't you be nabbing? shouldn't they be nabbing?
Perfect
shouldn't I have nabbed? shouldn't you have nabbed? shouldn't he have nabbed? shouldn't we have nabbed? shouldn't you have nabbed? shouldn't they have nabbed?
V-ing perfect
shouldn't I have been nabbing? shouldn't you have been nabbing? shouldn't he have been nabbing? shouldn't we have been nabbing? shouldn't you have been nabbing? shouldn't they have been nabbing?