can extract
Verbo regular: extract - extracted- extracted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can extract
you can extract
he can extract
we can extract
you can extract
they can extract 	I can be extracting
you can be extracting
he can be extracting
we can be extracting
you can be extracting
they can be extracting	I can have extracted
you can have extracted
he can have extracted
we can have extracted
you can have extracted
they can have extracted	I can have been extracting
you can have been extracting
he can have been extracting
we can have been extracting
you can have been extracting
they can have been extracting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't extract
you can't extract
he can't extract
we can't extract
you can't extract
they can't extract 	I can't be extracting
you can't be extracting
he can't be extracting
we can't be extracting
you can't be extracting
they can't be extracting	I can't have extracted
you can't have extracted
he can't have extracted
we can't have extracted
you can't have extracted
they can't have extracted	I can't have been extracting
you can't have been extracting
he can't have been extracting
we can't have been extracting
you can't have been extracting
they can't have been extracting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I extract?
can you extract?
can he extract?
can we extract?
can you extract?
can they extract? 	can I be extracting?
can you be extracting?
can he be extracting?
can we be extracting?
can you be extracting?
can they be extracting? 	can I have extracted?
can you have extracted?
can he have extracted?
can we have extracted?
can you have extracted?
can they have extracted? 	can I have been extracting?
can you have been extracting?
can he have been extracting?
can we have been extracting?
can you have been extracting?
can they have been extracting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I extract?
can't you extract?
can't he extract?
can't we extract?
can't you extract?
can't they extract? 	can't I be extracting?
can't you be extracting?
can't he be extracting?
can't we be extracting?
can't you be extracting?
can't they be extracting? 	can't I have extracted?
can't you have extracted?
can't he have extracted?
can't we have extracted?
can't you have extracted?
can't they have extracted? 	can't I have been extracting?
can't you have been extracting?
can't he have been extracting?
can't we have been extracting?
can't you have been extracting?
can't they have been extracting?