English verb conjugation
COULD SUPPLANT

Regular verb: supplant - supplanted - supplanted

Affirmation

Simple form	V-ing form
I could supplant you could supplant she could supplant we could supplant you could supplant they could supplant	I could be supplanting you could be supplanting she 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 she 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 she 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 she 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 she 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 she 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 she 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 she supplant? could we supplant? could you supplant? could they supplant?	could I be supplanting? could you be supplanting? could she 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 she 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 she 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 she 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 she 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 she 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 she have been supplanting? couldn't we have been supplanting? couldn't you have been supplanting? couldn't they have been supplanting?