English verb conjugation
COULD IMPLANT

Regular verb: implant - implanted - implanted

Affirmation

Simple form	V-ing form
I could implant you could implant she could implant we could implant you could implant they could implant	I could be implanting you could be implanting she could be implanting we could be implanting you could be implanting they could be implanting
Perfect	V-ing perfect
I could have implanted you could have implanted she could have implanted we could have implanted you could have implanted they could have implanted	I could have been implanting you could have been implanting she could have been implanting we could have been implanting you could have been implanting they could have been implanting

Negation

Simple form	V-ing form
I couldn't implant you couldn't implant she couldn't implant we couldn't implant you couldn't implant they couldn't implant	I couldn't be implanting you couldn't be implanting she couldn't be implanting we couldn't be implanting you couldn't be implanting they couldn't be implanting
Perfect	V-ing perfect
I couldn't have implanted you couldn't have implanted she couldn't have implanted we couldn't have implanted you couldn't have implanted they couldn't have implanted	I couldn't have been implanting you couldn't have been implanting she couldn't have been implanting we couldn't have been implanting you couldn't have been implanting they couldn't have been implanting

Interrogative form

Simple form	V-ing form
could I implant? could you implant? could she implant? could we implant? could you implant? could they implant?	could I be implanting? could you be implanting? could she be implanting? could we be implanting? could you be implanting? could they be implanting?
Perfect	V-ing perfect
could I have implanted? could you have implanted? could she have implanted? could we have implanted? could you have implanted? could they have implanted?	could I have been implanting? could you have been implanting? could she have been implanting? could we have been implanting? could you have been implanting? could they have been implanting?

Interro-negative form

Simple form	V-ing form
couldn't I implant? couldn't you implant? couldn't she implant? couldn't we implant? couldn't you implant? couldn't they implant?	couldn't I be implanting? couldn't you be implanting? couldn't she be implanting? couldn't we be implanting? couldn't you be implanting? couldn't they be implanting?
Perfect	V-ing perfect
couldn't I have implanted? couldn't you have implanted? couldn't she have implanted? couldn't we have implanted? couldn't you have implanted? couldn't they have implanted?	couldn't I have been implanting? couldn't you have been implanting? couldn't she have been implanting? couldn't we have been implanting? couldn't you have been implanting? couldn't they have been implanting?