could preinform
Verbo regular: preinform - preinformed- preinformed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could preinform
you could preinform
he could preinform
we could preinform
you could preinform
they could preinform 	I could be preinforming
you could be preinforming
he could be preinforming
we could be preinforming
you could be preinforming
they could be preinforming	I could have preinformed
you could have preinformed
he could have preinformed
we could have preinformed
you could have preinformed
they could have preinformed	I could have been preinforming
you could have been preinforming
he could have been preinforming
we could have been preinforming
you could have been preinforming
they could have been preinforming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not preinform
you could not preinform
he could not preinform
we could not preinform
you could not preinform
they could not preinform 	I could not be preinforming
you could not be preinforming
he could not be preinforming
we could not be preinforming
you could not be preinforming
they could not be preinforming	I could not have preinformed
you could not have preinformed
he could not have preinformed
we could not have preinformed
you could not have preinformed
they could not have preinformed	I could not have been preinforming
you could not have been preinforming
he could not have been preinforming
we could not have been preinforming
you could not have been preinforming
they could not have been preinforming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I preinform?
could you preinform?
could he preinform?
could we preinform?
could you preinform?
could they preinform? 	could I be preinforming?
could you be preinforming?
could he be preinforming?
could we be preinforming?
could you be preinforming?
could they be preinforming? 	could I have preinformed?
could you have preinformed?
could he have preinformed?
could we have preinformed?
could you have preinformed?
could they have preinformed? 	could I have been preinforming?
could you have been preinforming?
could he have been preinforming?
could we have been preinforming?
could you have been preinforming?
could they have been preinforming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not preinform?
could you not preinform?
could he not preinform?
could we not preinform?
could you not preinform?
could they not preinform? 	could I not be preinforming?
could you not be preinforming?
could he not be preinforming?
could we not be preinforming?
could you not be preinforming?
could they not be preinforming? 	could I not have preinformed?
could you not have preinformed?
could he not have preinformed?
could we not have preinformed?
could you not have preinformed?
could they not have preinformed? 	could I not have been preinforming?
could you not have been preinforming?
could he not have been preinforming?
could we not have been preinforming?
could you not have been preinforming?
could they not have been preinforming?