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