English verb conjugation
COULD PLOD

Regular verb: plod - plodded - plodded

Affirmation

Simple form	V-ing form
I could plod you could plod he could plod we could plod you could plod they could plod	I could be plodding you could be plodding he could be plodding we could be plodding you could be plodding they could be plodding
Perfect	V-ing perfect
I could have plodded you could have plodded he could have plodded we could have plodded you could have plodded they could have plodded	I could have been plodding you could have been plodding he could have been plodding we could have been plodding you could have been plodding they could have been plodding

Negation

Simple form	V-ing form
I could not plod you could not plod he could not plod we could not plod you could not plod they could not plod	I could not be plodding you could not be plodding he could not be plodding we could not be plodding you could not be plodding they could not be plodding
Perfect	V-ing perfect
I could not have plodded you could not have plodded he could not have plodded we could not have plodded you could not have plodded they could not have plodded	I could not have been plodding you could not have been plodding he could not have been plodding we could not have been plodding you could not have been plodding they could not have been plodding

Interrogative form

Simple form	V-ing form
could I plod? could you plod? could he plod? could we plod? could you plod? could they plod?	could I be plodding? could you be plodding? could he be plodding? could we be plodding? could you be plodding? could they be plodding?
Perfect	V-ing perfect
could I have plodded? could you have plodded? could he have plodded? could we have plodded? could you have plodded? could they have plodded?	could I have been plodding? could you have been plodding? could he have been plodding? could we have been plodding? could you have been plodding? could they have been plodding?

Interro-negative form

Simple form	V-ing form
could I not plod? could you not plod? could he not plod? could we not plod? could you not plod? could they not plod?	could I not be plodding? could you not be plodding? could he not be plodding? could we not be plodding? could you not be plodding? could they not be plodding?
Perfect	V-ing perfect
could I not have plodded? could you not have plodded? could he not have plodded? could we not have plodded? could you not have plodded? could they not have plodded?	could I not have been plodding? could you not have been plodding? could he not have been plodding? could we not have been plodding? could you not have been plodding? could they not have been plodding?