English verb conjugation
COULD REDUB

Regular verb: redub - redubed - redubed

Affirmation

Simple form	V-ing form
I could redub you could redub he could redub we could redub you could redub they could redub	I could be redubing you could be redubing he could be redubing we could be redubing you could be redubing they could be redubing
Perfect	V-ing perfect
I could have redubed you could have redubed he could have redubed we could have redubed you could have redubed they could have redubed	I could have been redubing you could have been redubing he could have been redubing we could have been redubing you could have been redubing they could have been redubing

Negation

Simple form	V-ing form
I couldn't redub you couldn't redub he couldn't redub we couldn't redub you couldn't redub they couldn't redub	I couldn't be redubing you couldn't be redubing he couldn't be redubing we couldn't be redubing you couldn't be redubing they couldn't be redubing
Perfect	V-ing perfect
I couldn't have redubed you couldn't have redubed he couldn't have redubed we couldn't have redubed you couldn't have redubed they couldn't have redubed	I couldn't have been redubing you couldn't have been redubing he couldn't have been redubing we couldn't have been redubing you couldn't have been redubing they couldn't have been redubing

Interrogative form

Simple form	V-ing form
could I redub? could you redub? could he redub? could we redub? could you redub? could they redub?	could I be redubing? could you be redubing? could he be redubing? could we be redubing? could you be redubing? could they be redubing?
Perfect	V-ing perfect
could I have redubed? could you have redubed? could he have redubed? could we have redubed? could you have redubed? could they have redubed?	could I have been redubing? could you have been redubing? could he have been redubing? could we have been redubing? could you have been redubing? could they have been redubing?

Interro-negative form

Simple form	V-ing form
couldn't I redub? couldn't you redub? couldn't he redub? couldn't we redub? couldn't you redub? couldn't they redub?	couldn't I be redubing? couldn't you be redubing? couldn't he be redubing? couldn't we be redubing? couldn't you be redubing? couldn't they be redubing?
Perfect	V-ing perfect
couldn't I have redubed? couldn't you have redubed? couldn't he have redubed? couldn't we have redubed? couldn't you have redubed? couldn't they have redubed?	couldn't I have been redubing? couldn't you have been redubing? couldn't he have been redubing? couldn't we have been redubing? couldn't you have been redubing? couldn't they have been redubing?