English verb conjugation
COULD PREMANUFACTURE

Regular verb: premanufacture - premanufactured - premanufactured

Affirmation

Simple form	V-ing form
I could premanufacture you could premanufacture he could premanufacture we could premanufacture you could premanufacture they could premanufacture	I could be premanufacturing you could be premanufacturing he could be premanufacturing we could be premanufacturing you could be premanufacturing they could be premanufacturing
Perfect	V-ing perfect
I could have premanufactured you could have premanufactured he could have premanufactured we could have premanufactured you could have premanufactured they could have premanufactured	I could have been premanufacturing you could have been premanufacturing he could have been premanufacturing we could have been premanufacturing you could have been premanufacturing they could have been premanufacturing

Negation

Simple form	V-ing form
I could not premanufacture you could not premanufacture he could not premanufacture we could not premanufacture you could not premanufacture they could not premanufacture	I could not be premanufacturing you could not be premanufacturing he could not be premanufacturing we could not be premanufacturing you could not be premanufacturing they could not be premanufacturing
Perfect	V-ing perfect
I could not have premanufactured you could not have premanufactured he could not have premanufactured we could not have premanufactured you could not have premanufactured they could not have premanufactured	I could not have been premanufacturing you could not have been premanufacturing he could not have been premanufacturing we could not have been premanufacturing you could not have been premanufacturing they could not have been premanufacturing

Interrogative form

Simple form	V-ing form
could I premanufacture? could you premanufacture? could he premanufacture? could we premanufacture? could you premanufacture? could they premanufacture?	could I be premanufacturing? could you be premanufacturing? could he be premanufacturing? could we be premanufacturing? could you be premanufacturing? could they be premanufacturing?
Perfect	V-ing perfect
could I have premanufactured? could you have premanufactured? could he have premanufactured? could we have premanufactured? could you have premanufactured? could they have premanufactured?	could I have been premanufacturing? could you have been premanufacturing? could he have been premanufacturing? could we have been premanufacturing? could you have been premanufacturing? could they have been premanufacturing?

Interro-negative form

Simple form	V-ing form
could I not premanufacture? could you not premanufacture? could he not premanufacture? could we not premanufacture? could you not premanufacture? could they not premanufacture?	could I not be premanufacturing? could you not be premanufacturing? could he not be premanufacturing? could we not be premanufacturing? could you not be premanufacturing? could they not be premanufacturing?
Perfect	V-ing perfect
could I not have premanufactured? could you not have premanufactured? could he not have premanufactured? could we not have premanufactured? could you not have premanufactured? could they not have premanufactured?	could I not have been premanufacturing? could you not have been premanufacturing? could he not have been premanufacturing? could we not have been premanufacturing? could you not have been premanufacturing? could they not have been premanufacturing?