could naturalise
Verbo regular: naturalise - naturalised- naturalised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could naturalise
you could naturalise
she could naturalise
we could naturalise
you could naturalise
they could naturalise 	I could be naturalising
you could be naturalising
she could be naturalising
we could be naturalising
you could be naturalising
they could be naturalising	I could have naturalised
you could have naturalised
she could have naturalised
we could have naturalised
you could have naturalised
they could have naturalised	I could have been naturalising
you could have been naturalising
she could have been naturalising
we could have been naturalising
you could have been naturalising
they could have been naturalising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't naturalise
you couldn't naturalise
she couldn't naturalise
we couldn't naturalise
you couldn't naturalise
they couldn't naturalise 	I couldn't be naturalising
you couldn't be naturalising
she couldn't be naturalising
we couldn't be naturalising
you couldn't be naturalising
they couldn't be naturalising	I couldn't have naturalised
you couldn't have naturalised
she couldn't have naturalised
we couldn't have naturalised
you couldn't have naturalised
they couldn't have naturalised	I couldn't have been naturalising
you couldn't have been naturalising
she couldn't have been naturalising
we couldn't have been naturalising
you couldn't have been naturalising
they couldn't have been naturalising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I naturalise?
could you naturalise?
could she naturalise?
could we naturalise?
could you naturalise?
could they naturalise? 	could I be naturalising?
could you be naturalising?
could she be naturalising?
could we be naturalising?
could you be naturalising?
could they be naturalising? 	could I have naturalised?
could you have naturalised?
could she have naturalised?
could we have naturalised?
could you have naturalised?
could they have naturalised? 	could I have been naturalising?
could you have been naturalising?
could she have been naturalising?
could we have been naturalising?
could you have been naturalising?
could they have been naturalising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I naturalise?
couldn't you naturalise?
couldn't she naturalise?
couldn't we naturalise?
couldn't you naturalise?
couldn't they naturalise? 	couldn't I be naturalising?
couldn't you be naturalising?
couldn't she be naturalising?
couldn't we be naturalising?
couldn't you be naturalising?
couldn't they be naturalising? 	couldn't I have naturalised?
couldn't you have naturalised?
couldn't she have naturalised?
couldn't we have naturalised?
couldn't you have naturalised?
couldn't they have naturalised? 	couldn't I have been naturalising?
couldn't you have been naturalising?
couldn't she have been naturalising?
couldn't we have been naturalising?
couldn't you have been naturalising?
couldn't they have been naturalising?