could update
Verbo regular: update - updated- updated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could update
you could update
she could update
we could update
you could update
they could update 	I could be updating
you could be updating
she could be updating
we could be updating
you could be updating
they could be updating	I could have updated
you could have updated
she could have updated
we could have updated
you could have updated
they could have updated	I could have been updating
you could have been updating
she could have been updating
we could have been updating
you could have been updating
they could have been updating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't update
you couldn't update
she couldn't update
we couldn't update
you couldn't update
they couldn't update 	I couldn't be updating
you couldn't be updating
she couldn't be updating
we couldn't be updating
you couldn't be updating
they couldn't be updating	I couldn't have updated
you couldn't have updated
she couldn't have updated
we couldn't have updated
you couldn't have updated
they couldn't have updated	I couldn't have been updating
you couldn't have been updating
she couldn't have been updating
we couldn't have been updating
you couldn't have been updating
they couldn't have been updating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I update?
could you update?
could she update?
could we update?
could you update?
could they update? 	could I be updating?
could you be updating?
could she be updating?
could we be updating?
could you be updating?
could they be updating? 	could I have updated?
could you have updated?
could she have updated?
could we have updated?
could you have updated?
could they have updated? 	could I have been updating?
could you have been updating?
could she have been updating?
could we have been updating?
could you have been updating?
could they have been updating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I update?
couldn't you update?
couldn't she update?
couldn't we update?
couldn't you update?
couldn't they update? 	couldn't I be updating?
couldn't you be updating?
couldn't she be updating?
couldn't we be updating?
couldn't you be updating?
couldn't they be updating? 	couldn't I have updated?
couldn't you have updated?
couldn't she have updated?
couldn't we have updated?
couldn't you have updated?
couldn't they have updated? 	couldn't I have been updating?
couldn't you have been updating?
couldn't she have been updating?
couldn't we have been updating?
couldn't you have been updating?
couldn't they have been updating?