I could premedicate you could premedicate he could premedicate we could premedicate you could premedicate they could premedicate
V-ing form
I could be premedicating you could be premedicating he could be premedicating we could be premedicating you could be premedicating they could be premedicating
Perfect
I could have premedicated you could have premedicated he could have premedicated we could have premedicated you could have premedicated they could have premedicated
V-ing perfect
I could have been premedicating you could have been premedicating he could have been premedicating we could have been premedicating you could have been premedicating they could have been premedicating
Negation
Simple form
I could not premedicate you could not premedicate he could not premedicate we could not premedicate you could not premedicate they could not premedicate
V-ing form
I could not be premedicating you could not be premedicating he could not be premedicating we could not be premedicating you could not be premedicating they could not be premedicating
Perfect
I could not have premedicated you could not have premedicated he could not have premedicated we could not have premedicated you could not have premedicated they could not have premedicated
V-ing perfect
I could not have been premedicating you could not have been premedicating he could not have been premedicating we could not have been premedicating you could not have been premedicating they could not have been premedicating
Interrogative form
Simple form
could I premedicate? could you premedicate? could he premedicate? could we premedicate? could you premedicate? could they premedicate?
V-ing form
could I be premedicating? could you be premedicating? could he be premedicating? could we be premedicating? could you be premedicating? could they be premedicating?
Perfect
could I have premedicated? could you have premedicated? could he have premedicated? could we have premedicated? could you have premedicated? could they have premedicated?
V-ing perfect
could I have been premedicating? could you have been premedicating? could he have been premedicating? could we have been premedicating? could you have been premedicating? could they have been premedicating?
Interro-negative form
Simple form
could I not premedicate? could you not premedicate? could he not premedicate? could we not premedicate? could you not premedicate? could they not premedicate?
V-ing form
could I not be premedicating? could you not be premedicating? could he not be premedicating? could we not be premedicating? could you not be premedicating? could they not be premedicating?
Perfect
could I not have premedicated? could you not have premedicated? could he not have premedicated? could we not have premedicated? could you not have premedicated? could they not have premedicated?
V-ing perfect
could I not have been premedicating? could you not have been premedicating? could he not have been premedicating? could we not have been premedicating? could you not have been premedicating? could they not have been premedicating?