could externalize
Verbo regular: externalize - externalized- externalized

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could externalize
you could externalize
she could externalize
we could externalize
you could externalize
they could externalize 	I could be externalizing
you could be externalizing
she could be externalizing
we could be externalizing
you could be externalizing
they could be externalizing	I could have externalized
you could have externalized
she could have externalized
we could have externalized
you could have externalized
they could have externalized	I could have been externalizing
you could have been externalizing
she could have been externalizing
we could have been externalizing
you could have been externalizing
they could have been externalizing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't externalize
you couldn't externalize
she couldn't externalize
we couldn't externalize
you couldn't externalize
they couldn't externalize 	I couldn't be externalizing
you couldn't be externalizing
she couldn't be externalizing
we couldn't be externalizing
you couldn't be externalizing
they couldn't be externalizing	I couldn't have externalized
you couldn't have externalized
she couldn't have externalized
we couldn't have externalized
you couldn't have externalized
they couldn't have externalized	I couldn't have been externalizing
you couldn't have been externalizing
she couldn't have been externalizing
we couldn't have been externalizing
you couldn't have been externalizing
they couldn't have been externalizing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I externalize?
could you externalize?
could she externalize?
could we externalize?
could you externalize?
could they externalize? 	could I be externalizing?
could you be externalizing?
could she be externalizing?
could we be externalizing?
could you be externalizing?
could they be externalizing? 	could I have externalized?
could you have externalized?
could she have externalized?
could we have externalized?
could you have externalized?
could they have externalized? 	could I have been externalizing?
could you have been externalizing?
could she have been externalizing?
could we have been externalizing?
could you have been externalizing?
could they have been externalizing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I externalize?
couldn't you externalize?
couldn't she externalize?
couldn't we externalize?
couldn't you externalize?
couldn't they externalize? 	couldn't I be externalizing?
couldn't you be externalizing?
couldn't she be externalizing?
couldn't we be externalizing?
couldn't you be externalizing?
couldn't they be externalizing? 	couldn't I have externalized?
couldn't you have externalized?
couldn't she have externalized?
couldn't we have externalized?
couldn't you have externalized?
couldn't they have externalized? 	couldn't I have been externalizing?
couldn't you have been externalizing?
couldn't she have been externalizing?
couldn't we have been externalizing?
couldn't you have been externalizing?
couldn't they have been externalizing?