Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may prognostic you may prognostic he may prognostic we may prognostic you may prognostic they may prognostic
V-ing form
I may be prognosticing you may be prognosticing he may be prognosticing we may be prognosticing you may be prognosticing they may be prognosticing
Perfect
I may have prognosticed you may have prognosticed he may have prognosticed we may have prognosticed you may have prognosticed they may have prognosticed
V-ing perfect
I may have been prognosticing you may have been prognosticing he may have been prognosticing we may have been prognosticing you may have been prognosticing they may have been prognosticing
Negation
Simple form
I mayn't prognostic you mayn't prognostic he mayn't prognostic we mayn't prognostic you mayn't prognostic they mayn't prognostic
V-ing form
I mayn't be prognosticing you mayn't be prognosticing he mayn't be prognosticing we mayn't be prognosticing you mayn't be prognosticing they mayn't be prognosticing
Perfect
I mayn't have prognosticed you mayn't have prognosticed he mayn't have prognosticed we mayn't have prognosticed you mayn't have prognosticed they mayn't have prognosticed
V-ing perfect
I mayn't have been prognosticing you mayn't have been prognosticing he mayn't have been prognosticing we mayn't have been prognosticing you mayn't have been prognosticing they mayn't have been prognosticing
Interrogative form
Simple form
may I prognostic? may you prognostic? may he prognostic? may we prognostic? may you prognostic? may they prognostic?
V-ing form
may I be prognosticing? may you be prognosticing? may he be prognosticing? may we be prognosticing? may you be prognosticing? may they be prognosticing?
Perfect
may I have prognosticed? may you have prognosticed? may he have prognosticed? may we have prognosticed? may you have prognosticed? may they have prognosticed?
V-ing perfect
may I have been prognosticing? may you have been prognosticing? may he have been prognosticing? may we have been prognosticing? may you have been prognosticing? may they have been prognosticing?
Interro-negative form
Simple form
mayn't I prognostic? mayn't you prognostic? mayn't he prognostic? mayn't we prognostic? mayn't you prognostic? mayn't they prognostic?
V-ing form
mayn't I be prognosticing? mayn't you be prognosticing? mayn't he be prognosticing? mayn't we be prognosticing? mayn't you be prognosticing? mayn't they be prognosticing?
Perfect
mayn't I have prognosticed? mayn't you have prognosticed? mayn't he have prognosticed? mayn't we have prognosticed? mayn't you have prognosticed? mayn't they have prognosticed?
V-ing perfect
mayn't I have been prognosticing? mayn't you have been prognosticing? mayn't he have been prognosticing? mayn't we have been prognosticing? mayn't you have been prognosticing? mayn't they have been prognosticing?