could metastasise
Verbo regular: metastasise - metastasised- metastasised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could metastasise
you could metastasise
he could metastasise
we could metastasise
you could metastasise
they could metastasise 	I could be metastasising
you could be metastasising
he could be metastasising
we could be metastasising
you could be metastasising
they could be metastasising	I could have metastasised
you could have metastasised
he could have metastasised
we could have metastasised
you could have metastasised
they could have metastasised	I could have been metastasising
you could have been metastasising
he could have been metastasising
we could have been metastasising
you could have been metastasising
they could have been metastasising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not metastasise
you could not metastasise
he could not metastasise
we could not metastasise
you could not metastasise
they could not metastasise 	I could not be metastasising
you could not be metastasising
he could not be metastasising
we could not be metastasising
you could not be metastasising
they could not be metastasising	I could not have metastasised
you could not have metastasised
he could not have metastasised
we could not have metastasised
you could not have metastasised
they could not have metastasised	I could not have been metastasising
you could not have been metastasising
he could not have been metastasising
we could not have been metastasising
you could not have been metastasising
they could not have been metastasising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I metastasise?
could you metastasise?
could he metastasise?
could we metastasise?
could you metastasise?
could they metastasise? 	could I be metastasising?
could you be metastasising?
could he be metastasising?
could we be metastasising?
could you be metastasising?
could they be metastasising? 	could I have metastasised?
could you have metastasised?
could he have metastasised?
could we have metastasised?
could you have metastasised?
could they have metastasised? 	could I have been metastasising?
could you have been metastasising?
could he have been metastasising?
could we have been metastasising?
could you have been metastasising?
could they have been metastasising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not metastasise?
could you not metastasise?
could he not metastasise?
could we not metastasise?
could you not metastasise?
could they not metastasise? 	could I not be metastasising?
could you not be metastasising?
could he not be metastasising?
could we not be metastasising?
could you not be metastasising?
could they not be metastasising? 	could I not have metastasised?
could you not have metastasised?
could he not have metastasised?
could we not have metastasised?
could you not have metastasised?
could they not have metastasised? 	could I not have been metastasising?
could you not have been metastasising?
could he not have been metastasising?
could we not have been metastasising?
could you not have been metastasising?
could they not have been metastasising?