English verb conjugation
CAN CLUE

Regular verb: clue - clued - clued

Affirmation

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