could metastasize
Verbo regular: metastasize - metastasized- metastasized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could metastasize
you could metastasize
he could metastasize
we could metastasize
you could metastasize
they could metastasize 	I could be metastasizing
you could be metastasizing
he could be metastasizing
we could be metastasizing
you could be metastasizing
they could be metastasizing	I could have metastasized
you could have metastasized
he could have metastasized
we could have metastasized
you could have metastasized
they could have metastasized	I could have been metastasizing
you could have been metastasizing
he could have been metastasizing
we could have been metastasizing
you could have been metastasizing
they could have been metastasizing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't metastasize
you couldn't metastasize
he couldn't metastasize
we couldn't metastasize
you couldn't metastasize
they couldn't metastasize 	I couldn't be metastasizing
you couldn't be metastasizing
he couldn't be metastasizing
we couldn't be metastasizing
you couldn't be metastasizing
they couldn't be metastasizing	I couldn't have metastasized
you couldn't have metastasized
he couldn't have metastasized
we couldn't have metastasized
you couldn't have metastasized
they couldn't have metastasized	I couldn't have been metastasizing
you couldn't have been metastasizing
he couldn't have been metastasizing
we couldn't have been metastasizing
you couldn't have been metastasizing
they couldn't have been metastasizing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I metastasize?
could you metastasize?
could he metastasize?
could we metastasize?
could you metastasize?
could they metastasize? 	could I be metastasizing?
could you be metastasizing?
could he be metastasizing?
could we be metastasizing?
could you be metastasizing?
could they be metastasizing? 	could I have metastasized?
could you have metastasized?
could he have metastasized?
could we have metastasized?
could you have metastasized?
could they have metastasized? 	could I have been metastasizing?
could you have been metastasizing?
could he have been metastasizing?
could we have been metastasizing?
could you have been metastasizing?
could they have been metastasizing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I metastasize?
couldn't you metastasize?
couldn't he metastasize?
couldn't we metastasize?
couldn't you metastasize?
couldn't they metastasize? 	couldn't I be metastasizing?
couldn't you be metastasizing?
couldn't he be metastasizing?
couldn't we be metastasizing?
couldn't you be metastasizing?
couldn't they be metastasizing? 	couldn't I have metastasized?
couldn't you have metastasized?
couldn't he have metastasized?
couldn't we have metastasized?
couldn't you have metastasized?
couldn't they have metastasized? 	couldn't I have been metastasizing?
couldn't you have been metastasizing?
couldn't he have been metastasizing?
couldn't we have been metastasizing?
couldn't you have been metastasizing?
couldn't they have been metastasizing?