can clue
Regular verb: clue - clued- clued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can clue
you can clue
she can clue
we can clue
you can clue
they can clue 	I can be cluing
you can be cluing
she can be cluing
we can be cluing
you can be cluing
they can be cluing	I can have clued
you can have clued
she can have clued
we can have clued
you can have clued
they can have clued	I can have been cluing
you can have been cluing
she can have been cluing
we can have been cluing
you can have been cluing
they can have been cluing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't clue
you can't clue
she can't clue
we can't clue
you can't clue
they can't clue 	I can't be cluing
you can't be cluing
she can't be cluing
we can't be cluing
you can't be cluing
they can't be cluing	I can't have clued
you can't have clued
she can't have clued
we can't have clued
you can't have clued
they can't have clued	I can't have been cluing
you can't have been cluing
she can't have been cluing
we can't have been cluing
you can't have been cluing
they can't have been cluing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I clue?
can you clue?
can she clue?
can we clue?
can you clue?
can they clue? 	can I be cluing?
can you be cluing?
can she be cluing?
can we be cluing?
can you be cluing?
can they be cluing? 	can I have clued?
can you have clued?
can she have clued?
can we have clued?
can you have clued?
can they have clued? 	can I have been cluing?
can you have been cluing?
can she have been cluing?
can we have been cluing?
can you have been cluing?
can they have been cluing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I clue?
can't you clue?
can't she clue?
can't we clue?
can't you clue?
can't they clue? 	can't I be cluing?
can't you be cluing?
can't she be cluing?
can't we be cluing?
can't you be cluing?
can't they be cluing? 	can't I have clued?
can't you have clued?
can't she have clued?
can't we have clued?
can't you have clued?
can't they have clued? 	can't I have been cluing?
can't you have been cluing?
can't she have been cluing?
can't we have been cluing?
can't you have been cluing?
can't they have been cluing?