Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I can curb curb you can curb curb she can curb curb we can curb curb you can curb curb they can curb curb
V-ing form
I can be curb curbing you can be curb curbing she can be curb curbing we can be curb curbing you can be curb curbing they can be curb curbing
Perfect
I can have curb curbed you can have curb curbed she can have curb curbed we can have curb curbed you can have curb curbed they can have curb curbed
V-ing perfect
I can have been curb curbing you can have been curb curbing she can have been curb curbing we can have been curb curbing you can have been curb curbing they can have been curb curbing
Negation
Simple form
I cannot curb curb you cannot curb curb she cannot curb curb we cannot curb curb you cannot curb curb they cannot curb curb
V-ing form
I cannot be curb curbing you cannot be curb curbing she cannot be curb curbing we cannot be curb curbing you cannot be curb curbing they cannot be curb curbing
Perfect
I cannot have curb curbed you cannot have curb curbed she cannot have curb curbed we cannot have curb curbed you cannot have curb curbed they cannot have curb curbed
V-ing perfect
I cannot have been curb curbing you cannot have been curb curbing she cannot have been curb curbing we cannot have been curb curbing you cannot have been curb curbing they cannot have been curb curbing
Interrogative form
Simple form
can I curb curb? can you curb curb? can she curb curb? can we curb curb? can you curb curb? can they curb curb?
V-ing form
can I be curb curbing? can you be curb curbing? can she be curb curbing? can we be curb curbing? can you be curb curbing? can they be curb curbing?
Perfect
can I have curb curbed? can you have curb curbed? can she have curb curbed? can we have curb curbed? can you have curb curbed? can they have curb curbed?
V-ing perfect
can I have been curb curbing? can you have been curb curbing? can she have been curb curbing? can we have been curb curbing? can you have been curb curbing? can they have been curb curbing?
Interro-negative form
Simple form
can I not curb curb? can you not curb curb? can she not curb curb? can we not curb curb? can you not curb curb? can they not curb curb?
V-ing form
can I not be curb curbing? can you not be curb curbing? can she not be curb curbing? can we not be curb curbing? can you not be curb curbing? can they not be curb curbing?
Perfect
can I not have curb curbed? can you not have curb curbed? can she not have curb curbed? can we not have curb curbed? can you not have curb curbed? can they not have curb curbed?
V-ing perfect
can I not have been curb curbing? can you not have been curb curbing? can she not have been curb curbing? can we not have been curb curbing? can you not have been curb curbing? can they not have been curb curbing?