could clue
Verbo regular: clue - clued- clued

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could clue
you could clue
he could clue
we could clue
you could clue
they could clue 	I could be cluing
you could be cluing
he could be cluing
we could be cluing
you could be cluing
they could be cluing	I could have clued
you could have clued
he could have clued
we could have clued
you could have clued
they could have clued	I could have been cluing
you could have been cluing
he could have been cluing
we could have been cluing
you could have been cluing
they could have been cluing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't clue
you couldn't clue
he couldn't clue
we couldn't clue
you couldn't clue
they couldn't clue 	I couldn't be cluing
you couldn't be cluing
he couldn't be cluing
we couldn't be cluing
you couldn't be cluing
they couldn't be cluing	I couldn't have clued
you couldn't have clued
he couldn't have clued
we couldn't have clued
you couldn't have clued
they couldn't have clued	I couldn't have been cluing
you couldn't have been cluing
he couldn't have been cluing
we couldn't have been cluing
you couldn't have been cluing
they couldn't have been cluing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I clue?
could you clue?
could he clue?
could we clue?
could you clue?
could they clue? 	could I be cluing?
could you be cluing?
could he be cluing?
could we be cluing?
could you be cluing?
could they be cluing? 	could I have clued?
could you have clued?
could he have clued?
could we have clued?
could you have clued?
could they have clued? 	could I have been cluing?
could you have been cluing?
could he have been cluing?
could we have been cluing?
could you have been cluing?
could they have been cluing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I clue?
couldn't you clue?
couldn't he clue?
couldn't we clue?
couldn't you clue?
couldn't they clue? 	couldn't I be cluing?
couldn't you be cluing?
couldn't he be cluing?
couldn't we be cluing?
couldn't you be cluing?
couldn't they be cluing? 	couldn't I have clued?
couldn't you have clued?
couldn't he have clued?
couldn't we have clued?
couldn't you have clued?
couldn't they have clued? 	couldn't I have been cluing?
couldn't you have been cluing?
couldn't he have been cluing?
couldn't we have been cluing?
couldn't you have been cluing?
couldn't they have been cluing?