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