English verb conjugation
COULD PREFORMAT

Regular verb: preformat - preformated - preformated

Affirmation

Simple form	V-ing form
I could preformat you could preformat he could preformat we could preformat you could preformat they could preformat	I could be preformating you could be preformating he could be preformating we could be preformating you could be preformating they could be preformating
Perfect	V-ing perfect
I could have preformated you could have preformated he could have preformated we could have preformated you could have preformated they could have preformated	I could have been preformating you could have been preformating he could have been preformating we could have been preformating you could have been preformating they could have been preformating

Negation

Simple form	V-ing form
I could not preformat you could not preformat he could not preformat we could not preformat you could not preformat they could not preformat	I could not be preformating you could not be preformating he could not be preformating we could not be preformating you could not be preformating they could not be preformating
Perfect	V-ing perfect
I could not have preformated you could not have preformated he could not have preformated we could not have preformated you could not have preformated they could not have preformated	I could not have been preformating you could not have been preformating he could not have been preformating we could not have been preformating you could not have been preformating they could not have been preformating

Interrogative form

Simple form	V-ing form
could I preformat? could you preformat? could he preformat? could we preformat? could you preformat? could they preformat?	could I be preformating? could you be preformating? could he be preformating? could we be preformating? could you be preformating? could they be preformating?
Perfect	V-ing perfect
could I have preformated? could you have preformated? could he have preformated? could we have preformated? could you have preformated? could they have preformated?	could I have been preformating? could you have been preformating? could he have been preformating? could we have been preformating? could you have been preformating? could they have been preformating?

Interro-negative form

Simple form	V-ing form
could I not preformat? could you not preformat? could he not preformat? could we not preformat? could you not preformat? could they not preformat?	could I not be preformating? could you not be preformating? could he not be preformating? could we not be preformating? could you not be preformating? could they not be preformating?
Perfect	V-ing perfect
could I not have preformated? could you not have preformated? could he not have preformated? could we not have preformated? could you not have preformated? could they not have preformated?	could I not have been preformating? could you not have been preformating? could he not have been preformating? could we not have been preformating? could you not have been preformating? could they not have been preformating?