English verb conjugation
COULD NITRIDE

Regular verb: nitride - nitrided - nitrided

Affirmation

Simple form	V-ing form
I could nitride you could nitride he could nitride we could nitride you could nitride they could nitride	I could be nitriding you could be nitriding he could be nitriding we could be nitriding you could be nitriding they could be nitriding
Perfect	V-ing perfect
I could have nitrided you could have nitrided he could have nitrided we could have nitrided you could have nitrided they could have nitrided	I could have been nitriding you could have been nitriding he could have been nitriding we could have been nitriding you could have been nitriding they could have been nitriding

Negation

Simple form	V-ing form
I could not nitride you could not nitride he could not nitride we could not nitride you could not nitride they could not nitride	I could not be nitriding you could not be nitriding he could not be nitriding we could not be nitriding you could not be nitriding they could not be nitriding
Perfect	V-ing perfect
I could not have nitrided you could not have nitrided he could not have nitrided we could not have nitrided you could not have nitrided they could not have nitrided	I could not have been nitriding you could not have been nitriding he could not have been nitriding we could not have been nitriding you could not have been nitriding they could not have been nitriding

Interrogative form

Simple form	V-ing form
could I nitride? could you nitride? could he nitride? could we nitride? could you nitride? could they nitride?	could I be nitriding? could you be nitriding? could he be nitriding? could we be nitriding? could you be nitriding? could they be nitriding?
Perfect	V-ing perfect
could I have nitrided? could you have nitrided? could he have nitrided? could we have nitrided? could you have nitrided? could they have nitrided?	could I have been nitriding? could you have been nitriding? could he have been nitriding? could we have been nitriding? could you have been nitriding? could they have been nitriding?

Interro-negative form

Simple form	V-ing form
could I not nitride? could you not nitride? could he not nitride? could we not nitride? could you not nitride? could they not nitride?	could I not be nitriding? could you not be nitriding? could he not be nitriding? could we not be nitriding? could you not be nitriding? could they not be nitriding?
Perfect	V-ing perfect
could I not have nitrided? could you not have nitrided? could he not have nitrided? could we not have nitrided? could you not have nitrided? could they not have nitrided?	could I not have been nitriding? could you not have been nitriding? could he not have been nitriding? could we not have been nitriding? could you not have been nitriding? could they not have been nitriding?