could log
Verbo regular: log - logged- logged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could log
you could log
he could log
we could log
you could log
they could log 	I could be logging
you could be logging
he could be logging
we could be logging
you could be logging
they could be logging	I could have logged
you could have logged
he could have logged
we could have logged
you could have logged
they could have logged	I could have been logging
you could have been logging
he could have been logging
we could have been logging
you could have been logging
they could have been logging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't log
you couldn't log
he couldn't log
we couldn't log
you couldn't log
they couldn't log 	I couldn't be logging
you couldn't be logging
he couldn't be logging
we couldn't be logging
you couldn't be logging
they couldn't be logging	I couldn't have logged
you couldn't have logged
he couldn't have logged
we couldn't have logged
you couldn't have logged
they couldn't have logged	I couldn't have been logging
you couldn't have been logging
he couldn't have been logging
we couldn't have been logging
you couldn't have been logging
they couldn't have been logging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I log?
could you log?
could he log?
could we log?
could you log?
could they log? 	could I be logging?
could you be logging?
could he be logging?
could we be logging?
could you be logging?
could they be logging? 	could I have logged?
could you have logged?
could he have logged?
could we have logged?
could you have logged?
could they have logged? 	could I have been logging?
could you have been logging?
could he have been logging?
could we have been logging?
could you have been logging?
could they have been logging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I log?
couldn't you log?
couldn't he log?
couldn't we log?
couldn't you log?
couldn't they log? 	couldn't I be logging?
couldn't you be logging?
couldn't he be logging?
couldn't we be logging?
couldn't you be logging?
couldn't they be logging? 	couldn't I have logged?
couldn't you have logged?
couldn't he have logged?
couldn't we have logged?
couldn't you have logged?
couldn't they have logged? 	couldn't I have been logging?
couldn't you have been logging?
couldn't he have been logging?
couldn't we have been logging?
couldn't you have been logging?
couldn't they have been logging?