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 couldn't crud you couldn't crud he couldn't crud we couldn't crud you couldn't crud they couldn't crud	I couldn't be cruding you couldn't be cruding he couldn't be cruding we couldn't be cruding you couldn't be cruding they couldn't be cruding
Perfect	V-ing perfect
I couldn't have cruded you couldn't have cruded he couldn't have cruded we couldn't have cruded you couldn't have cruded they couldn't have cruded	I couldn't have been cruding you couldn't have been cruding he couldn't have been cruding we couldn't have been cruding you couldn't have been cruding they couldn't 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
couldn't I crud? couldn't you crud? couldn't he crud? couldn't we crud? couldn't you crud? couldn't they crud?	couldn't I be cruding? couldn't you be cruding? couldn't he be cruding? couldn't we be cruding? couldn't you be cruding? couldn't they be cruding?
Perfect	V-ing perfect
couldn't I have cruded? couldn't you have cruded? couldn't he have cruded? couldn't we have cruded? couldn't you have cruded? couldn't they have cruded?	couldn't I have been cruding? couldn't you have been cruding? couldn't he have been cruding? couldn't we have been cruding? couldn't you have been cruding? couldn't they have been cruding?