I could prevaricate you could prevaricate he could prevaricate we could prevaricate you could prevaricate they could prevaricate
V-ing form
I could be prevaricating you could be prevaricating he could be prevaricating we could be prevaricating you could be prevaricating they could be prevaricating
Perfect
I could have prevaricated you could have prevaricated he could have prevaricated we could have prevaricated you could have prevaricated they could have prevaricated
V-ing perfect
I could have been prevaricating you could have been prevaricating he could have been prevaricating we could have been prevaricating you could have been prevaricating they could have been prevaricating
Negation
Simple form
I could not prevaricate you could not prevaricate he could not prevaricate we could not prevaricate you could not prevaricate they could not prevaricate
V-ing form
I could not be prevaricating you could not be prevaricating he could not be prevaricating we could not be prevaricating you could not be prevaricating they could not be prevaricating
Perfect
I could not have prevaricated you could not have prevaricated he could not have prevaricated we could not have prevaricated you could not have prevaricated they could not have prevaricated
V-ing perfect
I could not have been prevaricating you could not have been prevaricating he could not have been prevaricating we could not have been prevaricating you could not have been prevaricating they could not have been prevaricating
Interrogative form
Simple form
could I prevaricate? could you prevaricate? could he prevaricate? could we prevaricate? could you prevaricate? could they prevaricate?
V-ing form
could I be prevaricating? could you be prevaricating? could he be prevaricating? could we be prevaricating? could you be prevaricating? could they be prevaricating?
Perfect
could I have prevaricated? could you have prevaricated? could he have prevaricated? could we have prevaricated? could you have prevaricated? could they have prevaricated?
V-ing perfect
could I have been prevaricating? could you have been prevaricating? could he have been prevaricating? could we have been prevaricating? could you have been prevaricating? could they have been prevaricating?
Interro-negative form
Simple form
could I not prevaricate? could you not prevaricate? could he not prevaricate? could we not prevaricate? could you not prevaricate? could they not prevaricate?
V-ing form
could I not be prevaricating? could you not be prevaricating? could he not be prevaricating? could we not be prevaricating? could you not be prevaricating? could they not be prevaricating?
Perfect
could I not have prevaricated? could you not have prevaricated? could he not have prevaricated? could we not have prevaricated? could you not have prevaricated? could they not have prevaricated?
V-ing perfect
could I not have been prevaricating? could you not have been prevaricating? could he not have been prevaricating? could we not have been prevaricating? could you not have been prevaricating? could they not have been prevaricating?