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