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