English verb conjugation
COULD CURB CURB

Regular verb: curb curb - curb curbed - curb curbed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could curb curb you could curb curb he could curb curb we could curb curb you could curb curb they could curb curb	I could be curb curbing you could be curb curbing he could be curb curbing we could be curb curbing you could be curb curbing they could be curb curbing
Perfect	V-ing perfect
I could have curb curbed you could have curb curbed he could have curb curbed we could have curb curbed you could have curb curbed they could have curb curbed	I could have been curb curbing you could have been curb curbing he could have been curb curbing we could have been curb curbing you could have been curb curbing they could have been curb curbing

Negation

Simple form	V-ing form
I couldn't curb curb you couldn't curb curb he couldn't curb curb we couldn't curb curb you couldn't curb curb they couldn't curb curb	I couldn't be curb curbing you couldn't be curb curbing he couldn't be curb curbing we couldn't be curb curbing you couldn't be curb curbing they couldn't be curb curbing
Perfect	V-ing perfect
I couldn't have curb curbed you couldn't have curb curbed he couldn't have curb curbed we couldn't have curb curbed you couldn't have curb curbed they couldn't have curb curbed	I couldn't have been curb curbing you couldn't have been curb curbing he couldn't have been curb curbing we couldn't have been curb curbing you couldn't have been curb curbing they couldn't have been curb curbing

Interrogative form

Simple form	V-ing form
could I curb curb? could you curb curb? could he curb curb? could we curb curb? could you curb curb? could they curb curb?	could I be curb curbing? could you be curb curbing? could he be curb curbing? could we be curb curbing? could you be curb curbing? could they be curb curbing?
Perfect	V-ing perfect
could I have curb curbed? could you have curb curbed? could he have curb curbed? could we have curb curbed? could you have curb curbed? could they have curb curbed?	could I have been curb curbing? could you have been curb curbing? could he have been curb curbing? could we have been curb curbing? could you have been curb curbing? could they have been curb curbing?

Interro-negative form

Simple form	V-ing form
couldn't I curb curb? couldn't you curb curb? couldn't he curb curb? couldn't we curb curb? couldn't you curb curb? couldn't they curb curb?	couldn't I be curb curbing? couldn't you be curb curbing? couldn't he be curb curbing? couldn't we be curb curbing? couldn't you be curb curbing? couldn't they be curb curbing?
Perfect	V-ing perfect
couldn't I have curb curbed? couldn't you have curb curbed? couldn't he have curb curbed? couldn't we have curb curbed? couldn't you have curb curbed? couldn't they have curb curbed?	couldn't I have been curb curbing? couldn't you have been curb curbing? couldn't he have been curb curbing? couldn't we have been curb curbing? couldn't you have been curb curbing? couldn't they have been curb curbing?