could preguarantee
Verbo regular: preguarantee - preguaranteed- preguaranteed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could preguarantee
you could preguarantee
he could preguarantee
we could preguarantee
you could preguarantee
they could preguarantee 	I could be preguaranteeing
you could be preguaranteeing
he could be preguaranteeing
we could be preguaranteeing
you could be preguaranteeing
they could be preguaranteeing	I could have preguaranteed
you could have preguaranteed
he could have preguaranteed
we could have preguaranteed
you could have preguaranteed
they could have preguaranteed	I could have been preguaranteeing
you could have been preguaranteeing
he could have been preguaranteeing
we could have been preguaranteeing
you could have been preguaranteeing
they could have been preguaranteeing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not preguarantee
you could not preguarantee
he could not preguarantee
we could not preguarantee
you could not preguarantee
they could not preguarantee 	I could not be preguaranteeing
you could not be preguaranteeing
he could not be preguaranteeing
we could not be preguaranteeing
you could not be preguaranteeing
they could not be preguaranteeing	I could not have preguaranteed
you could not have preguaranteed
he could not have preguaranteed
we could not have preguaranteed
you could not have preguaranteed
they could not have preguaranteed	I could not have been preguaranteeing
you could not have been preguaranteeing
he could not have been preguaranteeing
we could not have been preguaranteeing
you could not have been preguaranteeing
they could not have been preguaranteeing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I preguarantee?
could you preguarantee?
could he preguarantee?
could we preguarantee?
could you preguarantee?
could they preguarantee? 	could I be preguaranteeing?
could you be preguaranteeing?
could he be preguaranteeing?
could we be preguaranteeing?
could you be preguaranteeing?
could they be preguaranteeing? 	could I have preguaranteed?
could you have preguaranteed?
could he have preguaranteed?
could we have preguaranteed?
could you have preguaranteed?
could they have preguaranteed? 	could I have been preguaranteeing?
could you have been preguaranteeing?
could he have been preguaranteeing?
could we have been preguaranteeing?
could you have been preguaranteeing?
could they have been preguaranteeing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not preguarantee?
could you not preguarantee?
could he not preguarantee?
could we not preguarantee?
could you not preguarantee?
could they not preguarantee? 	could I not be preguaranteeing?
could you not be preguaranteeing?
could he not be preguaranteeing?
could we not be preguaranteeing?
could you not be preguaranteeing?
could they not be preguaranteeing? 	could I not have preguaranteed?
could you not have preguaranteed?
could he not have preguaranteed?
could we not have preguaranteed?
could you not have preguaranteed?
could they not have preguaranteed? 	could I not have been preguaranteeing?
could you not have been preguaranteeing?
could he not have been preguaranteeing?
could we not have been preguaranteeing?
could you not have been preguaranteeing?
could they not have been preguaranteeing?