English verb conjugation
COULD PREMARKET

Regular verb: premarket - premarketed - premarketed

Affirmation

Simple form	V-ing form
I could premarket you could premarket he could premarket we could premarket you could premarket they could premarket	I could be premarketing you could be premarketing he could be premarketing we could be premarketing you could be premarketing they could be premarketing
Perfect	V-ing perfect
I could have premarketed you could have premarketed he could have premarketed we could have premarketed you could have premarketed they could have premarketed	I could have been premarketing you could have been premarketing he could have been premarketing we could have been premarketing you could have been premarketing they could have been premarketing

Negation

Simple form	V-ing form
I could not premarket you could not premarket he could not premarket we could not premarket you could not premarket they could not premarket	I could not be premarketing you could not be premarketing he could not be premarketing we could not be premarketing you could not be premarketing they could not be premarketing
Perfect	V-ing perfect
I could not have premarketed you could not have premarketed he could not have premarketed we could not have premarketed you could not have premarketed they could not have premarketed	I could not have been premarketing you could not have been premarketing he could not have been premarketing we could not have been premarketing you could not have been premarketing they could not have been premarketing

Interrogative form

Simple form	V-ing form
could I premarket? could you premarket? could he premarket? could we premarket? could you premarket? could they premarket?	could I be premarketing? could you be premarketing? could he be premarketing? could we be premarketing? could you be premarketing? could they be premarketing?
Perfect	V-ing perfect
could I have premarketed? could you have premarketed? could he have premarketed? could we have premarketed? could you have premarketed? could they have premarketed?	could I have been premarketing? could you have been premarketing? could he have been premarketing? could we have been premarketing? could you have been premarketing? could they have been premarketing?

Interro-negative form

Simple form	V-ing form
could I not premarket? could you not premarket? could he not premarket? could we not premarket? could you not premarket? could they not premarket?	could I not be premarketing? could you not be premarketing? could he not be premarketing? could we not be premarketing? could you not be premarketing? could they not be premarketing?
Perfect	V-ing perfect
could I not have premarketed? could you not have premarketed? could he not have premarketed? could we not have premarketed? could you not have premarketed? could they not have premarketed?	could I not have been premarketing? could you not have been premarketing? could he not have been premarketing? could we not have been premarketing? could you not have been premarketing? could they not have been premarketing?