could preprocess
Verbo regular: preprocess - preprocessed- preprocessed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could preprocess
you could preprocess
she could preprocess
we could preprocess
you could preprocess
they could preprocess 	I could be preprocessing
you could be preprocessing
she could be preprocessing
we could be preprocessing
you could be preprocessing
they could be preprocessing	I could have preprocessed
you could have preprocessed
she could have preprocessed
we could have preprocessed
you could have preprocessed
they could have preprocessed	I could have been preprocessing
you could have been preprocessing
she could have been preprocessing
we could have been preprocessing
you could have been preprocessing
they could have been preprocessing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't preprocess
you couldn't preprocess
she couldn't preprocess
we couldn't preprocess
you couldn't preprocess
they couldn't preprocess 	I couldn't be preprocessing
you couldn't be preprocessing
she couldn't be preprocessing
we couldn't be preprocessing
you couldn't be preprocessing
they couldn't be preprocessing	I couldn't have preprocessed
you couldn't have preprocessed
she couldn't have preprocessed
we couldn't have preprocessed
you couldn't have preprocessed
they couldn't have preprocessed	I couldn't have been preprocessing
you couldn't have been preprocessing
she couldn't have been preprocessing
we couldn't have been preprocessing
you couldn't have been preprocessing
they couldn't have been preprocessing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I preprocess?
could you preprocess?
could she preprocess?
could we preprocess?
could you preprocess?
could they preprocess? 	could I be preprocessing?
could you be preprocessing?
could she be preprocessing?
could we be preprocessing?
could you be preprocessing?
could they be preprocessing? 	could I have preprocessed?
could you have preprocessed?
could she have preprocessed?
could we have preprocessed?
could you have preprocessed?
could they have preprocessed? 	could I have been preprocessing?
could you have been preprocessing?
could she have been preprocessing?
could we have been preprocessing?
could you have been preprocessing?
could they have been preprocessing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I preprocess?
couldn't you preprocess?
couldn't she preprocess?
couldn't we preprocess?
couldn't you preprocess?
couldn't they preprocess? 	couldn't I be preprocessing?
couldn't you be preprocessing?
couldn't she be preprocessing?
couldn't we be preprocessing?
couldn't you be preprocessing?
couldn't they be preprocessing? 	couldn't I have preprocessed?
couldn't you have preprocessed?
couldn't she have preprocessed?
couldn't we have preprocessed?
couldn't you have preprocessed?
couldn't they have preprocessed? 	couldn't I have been preprocessing?
couldn't you have been preprocessing?
couldn't she have been preprocessing?
couldn't we have been preprocessing?
couldn't you have been preprocessing?
couldn't they have been preprocessing?