English verb conjugation
COULD CRUD

Regular verb: crud - cruded - cruded

Affirmation

Simple form	V-ing form
I could crud you could crud he could crud we could crud you could crud they could crud	I could be cruding you could be cruding he could be cruding we could be cruding you could be cruding they could be cruding
Perfect	V-ing perfect
I could have cruded you could have cruded he could have cruded we could have cruded you could have cruded they could have cruded	I could have been cruding you could have been cruding he could have been cruding we could have been cruding you could have been cruding they could have been cruding

Negation

Simple form	V-ing form
I could not crud you could not crud he could not crud we could not crud you could not crud they could not crud	I could not be cruding you could not be cruding he could not be cruding we could not be cruding you could not be cruding they could not be cruding
Perfect	V-ing perfect
I could not have cruded you could not have cruded he could not have cruded we could not have cruded you could not have cruded they could not have cruded	I could not have been cruding you could not have been cruding he could not have been cruding we could not have been cruding you could not have been cruding they could not have been cruding

Interrogative form

Simple form	V-ing form
could I crud? could you crud? could he crud? could we crud? could you crud? could they crud?	could I be cruding? could you be cruding? could he be cruding? could we be cruding? could you be cruding? could they be cruding?
Perfect	V-ing perfect
could I have cruded? could you have cruded? could he have cruded? could we have cruded? could you have cruded? could they have cruded?	could I have been cruding? could you have been cruding? could he have been cruding? could we have been cruding? could you have been cruding? could they have been cruding?

Interro-negative form

Simple form	V-ing form
could I not crud? could you not crud? could he not crud? could we not crud? could you not crud? could they not crud?	could I not be cruding? could you not be cruding? could he not be cruding? could we not be cruding? could you not be cruding? could they not be cruding?
Perfect	V-ing perfect
could I not have cruded? could you not have cruded? could he not have cruded? could we not have cruded? could you not have cruded? could they not have cruded?	could I not have been cruding? could you not have been cruding? could he not have been cruding? could we not have been cruding? could you not have been cruding? could they not have been cruding?