could metastasize
Verbe régulier : metastasize - metastasized- metastasized

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could metastasize
you could metastasize
she could metastasize
we could metastasize
you could metastasize
they could metastasize 	I could be metastasizing
you could be metastasizing
she could be metastasizing
we could be metastasizing
you could be metastasizing
they could be metastasizing	I could have metastasized
you could have metastasized
she 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
she could have been metastasizing
we could have been metastasizing
you could have been metastasizing
they could have been metastasizing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't metastasize
you couldn't metastasize
she 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
she 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
she 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
she couldn't have been metastasizing
we couldn't have been metastasizing
you couldn't have been metastasizing
they couldn't have been metastasizing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I metastasize?
could you metastasize?
could she metastasize?
could we metastasize?
could you metastasize?
could they metastasize? 	could I be metastasizing?
could you be metastasizing?
could she be metastasizing?
could we be metastasizing?
could you be metastasizing?
could they be metastasizing? 	could I have metastasized?
could you have metastasized?
could she 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 she have been metastasizing?
could we have been metastasizing?
could you have been metastasizing?
could they have been metastasizing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I metastasize?
couldn't you metastasize?
couldn't she 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 she 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 she 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 she have been metastasizing?
couldn't we have been metastasizing?
couldn't you have been metastasizing?
couldn't they have been metastasizing?