could prognosticate
Verbo regular: prognosticate - prognosticated- prognosticated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could prognosticate
you could prognosticate
she could prognosticate
we could prognosticate
you could prognosticate
they could prognosticate 	I could be prognosticating
you could be prognosticating
she could be prognosticating
we could be prognosticating
you could be prognosticating
they could be prognosticating	I could have prognosticated
you could have prognosticated
she could have prognosticated
we could have prognosticated
you could have prognosticated
they could have prognosticated	I could have been prognosticating
you could have been prognosticating
she could have been prognosticating
we could have been prognosticating
you could have been prognosticating
they could have been prognosticating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't prognosticate
you couldn't prognosticate
she couldn't prognosticate
we couldn't prognosticate
you couldn't prognosticate
they couldn't prognosticate 	I couldn't be prognosticating
you couldn't be prognosticating
she couldn't be prognosticating
we couldn't be prognosticating
you couldn't be prognosticating
they couldn't be prognosticating	I couldn't have prognosticated
you couldn't have prognosticated
she couldn't have prognosticated
we couldn't have prognosticated
you couldn't have prognosticated
they couldn't have prognosticated	I couldn't have been prognosticating
you couldn't have been prognosticating
she couldn't have been prognosticating
we couldn't have been prognosticating
you couldn't have been prognosticating
they couldn't have been prognosticating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I prognosticate?
could you prognosticate?
could she prognosticate?
could we prognosticate?
could you prognosticate?
could they prognosticate? 	could I be prognosticating?
could you be prognosticating?
could she be prognosticating?
could we be prognosticating?
could you be prognosticating?
could they be prognosticating? 	could I have prognosticated?
could you have prognosticated?
could she have prognosticated?
could we have prognosticated?
could you have prognosticated?
could they have prognosticated? 	could I have been prognosticating?
could you have been prognosticating?
could she have been prognosticating?
could we have been prognosticating?
could you have been prognosticating?
could they have been prognosticating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I prognosticate?
couldn't you prognosticate?
couldn't she prognosticate?
couldn't we prognosticate?
couldn't you prognosticate?
couldn't they prognosticate? 	couldn't I be prognosticating?
couldn't you be prognosticating?
couldn't she be prognosticating?
couldn't we be prognosticating?
couldn't you be prognosticating?
couldn't they be prognosticating? 	couldn't I have prognosticated?
couldn't you have prognosticated?
couldn't she have prognosticated?
couldn't we have prognosticated?
couldn't you have prognosticated?
couldn't they have prognosticated? 	couldn't I have been prognosticating?
couldn't you have been prognosticating?
couldn't she have been prognosticating?
couldn't we have been prognosticating?
couldn't you have been prognosticating?
couldn't they have been prognosticating?