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 cannot prognosticate you cannot prognosticate he cannot prognosticate we cannot prognosticate you cannot prognosticate they cannot prognosticate
V-ing form
I cannot be prognosticating you cannot be prognosticating he cannot be prognosticating we cannot be prognosticating you cannot be prognosticating they cannot be prognosticating
Perfect
I cannot have prognosticated you cannot have prognosticated he cannot have prognosticated we cannot have prognosticated you cannot have prognosticated they cannot have prognosticated
V-ing perfect
I cannot have been prognosticating you cannot have been prognosticating he cannot have been prognosticating we cannot have been prognosticating you cannot have been prognosticating they cannot 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 I not prognosticate? can you not prognosticate? can he not prognosticate? can we not prognosticate? can you not prognosticate? can they not prognosticate?
V-ing form
can I not be prognosticating? can you not be prognosticating? can he not be prognosticating? can we not be prognosticating? can you not be prognosticating? can they not be prognosticating?
Perfect
can I not have prognosticated? can you not have prognosticated? can he not have prognosticated? can we not have prognosticated? can you not have prognosticated? can they not have prognosticated?
V-ing perfect
can I not have been prognosticating? can you not have been prognosticating? can he not have been prognosticating? can we not have been prognosticating? can you not have been prognosticating? can they not have been prognosticating?