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 couldn't supplant you couldn't supplant he couldn't supplant we couldn't supplant you couldn't supplant they couldn't supplant	I couldn't be supplanting you couldn't be supplanting he couldn't be supplanting we couldn't be supplanting you couldn't be supplanting they couldn't be supplanting
Perfect	V-ing perfect
I couldn't have supplanted you couldn't have supplanted he couldn't have supplanted we couldn't have supplanted you couldn't have supplanted they couldn't have supplanted	I couldn't have been supplanting you couldn't have been supplanting he couldn't have been supplanting we couldn't have been supplanting you couldn't have been supplanting they couldn't 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
couldn't I supplant? couldn't you supplant? couldn't he supplant? couldn't we supplant? couldn't you supplant? couldn't they supplant?	couldn't I be supplanting? couldn't you be supplanting? couldn't he be supplanting? couldn't we be supplanting? couldn't you be supplanting? couldn't they be supplanting?
Perfect	V-ing perfect
couldn't I have supplanted? couldn't you have supplanted? couldn't he have supplanted? couldn't we have supplanted? couldn't you have supplanted? couldn't they have supplanted?	couldn't I have been supplanting? couldn't you have been supplanting? couldn't he have been supplanting? couldn't we have been supplanting? couldn't you have been supplanting? couldn't they have been supplanting?