English verb conjugation
COULD SUPPLANT

Regular verb: supplant - supplanted - supplanted

Affirmation

Simple form	V-ing form
I could supplant you could supplant he could supplant we could supplant you could supplant they could supplant	I could be supplanting you could be supplanting he could be supplanting we could be supplanting you could be supplanting they could be supplanting
Perfect	V-ing perfect
I could have supplanted you could have supplanted he could have supplanted we could have supplanted you could have supplanted they could have supplanted	I could have been supplanting you could have been supplanting he could have been supplanting we could have been supplanting you could have been supplanting they could have been supplanting

Negation

Simple form	V-ing form
I could not supplant you could not supplant he could not supplant we could not supplant you could not supplant they could not supplant	I could not be supplanting you could not be supplanting he could not be supplanting we could not be supplanting you could not be supplanting they could not be supplanting
Perfect	V-ing perfect
I could not have supplanted you could not have supplanted he could not have supplanted we could not have supplanted you could not have supplanted they could not have supplanted	I could not have been supplanting you could not have been supplanting he could not have been supplanting we could not have been supplanting you could not have been supplanting they could not have been supplanting

Interrogative form

Simple form	V-ing form
could I supplant? could you supplant? could he supplant? could we supplant? could you supplant? could they supplant?	could I be supplanting? could you be supplanting? could he be supplanting? could we be supplanting? could you be supplanting? could they be supplanting?
Perfect	V-ing perfect
could I have supplanted? could you have supplanted? could he have supplanted? could we have supplanted? could you have supplanted? could they have supplanted?	could I have been supplanting? could you have been supplanting? could he have been supplanting? could we have been supplanting? could you have been supplanting? could they have been supplanting?

Interro-negative form

Simple form	V-ing form
could I not supplant? could you not supplant? could he not supplant? could we not supplant? could you not supplant? could they not supplant?	could I not be supplanting? could you not be supplanting? could he not be supplanting? could we not be supplanting? could you not be supplanting? could they not be supplanting?
Perfect	V-ing perfect
could I not have supplanted? could you not have supplanted? could he not have supplanted? could we not have supplanted? could you not have supplanted? could they not have supplanted?	could I not have been supplanting? could you not have been supplanting? could he not have been supplanting? could we not have been supplanting? could you not have been supplanting? could they not have been supplanting?