I could preauthorise you could preauthorise he could preauthorise we could preauthorise you could preauthorise they could preauthorise
V-ing form
I could be preauthorising you could be preauthorising he could be preauthorising we could be preauthorising you could be preauthorising they could be preauthorising
Perfect
I could have preauthorised you could have preauthorised he could have preauthorised we could have preauthorised you could have preauthorised they could have preauthorised
V-ing perfect
I could have been preauthorising you could have been preauthorising he could have been preauthorising we could have been preauthorising you could have been preauthorising they could have been preauthorising
Negation
Simple form
I could not preauthorise you could not preauthorise he could not preauthorise we could not preauthorise you could not preauthorise they could not preauthorise
V-ing form
I could not be preauthorising you could not be preauthorising he could not be preauthorising we could not be preauthorising you could not be preauthorising they could not be preauthorising
Perfect
I could not have preauthorised you could not have preauthorised he could not have preauthorised we could not have preauthorised you could not have preauthorised they could not have preauthorised
V-ing perfect
I could not have been preauthorising you could not have been preauthorising he could not have been preauthorising we could not have been preauthorising you could not have been preauthorising they could not have been preauthorising
Interrogative form
Simple form
could I preauthorise? could you preauthorise? could he preauthorise? could we preauthorise? could you preauthorise? could they preauthorise?
V-ing form
could I be preauthorising? could you be preauthorising? could he be preauthorising? could we be preauthorising? could you be preauthorising? could they be preauthorising?
Perfect
could I have preauthorised? could you have preauthorised? could he have preauthorised? could we have preauthorised? could you have preauthorised? could they have preauthorised?
V-ing perfect
could I have been preauthorising? could you have been preauthorising? could he have been preauthorising? could we have been preauthorising? could you have been preauthorising? could they have been preauthorising?
Interro-negative form
Simple form
could I not preauthorise? could you not preauthorise? could he not preauthorise? could we not preauthorise? could you not preauthorise? could they not preauthorise?
V-ing form
could I not be preauthorising? could you not be preauthorising? could he not be preauthorising? could we not be preauthorising? could you not be preauthorising? could they not be preauthorising?
Perfect
could I not have preauthorised? could you not have preauthorised? could he not have preauthorised? could we not have preauthorised? could you not have preauthorised? could they not have preauthorised?
V-ing perfect
could I not have been preauthorising? could you not have been preauthorising? could he not have been preauthorising? could we not have been preauthorising? could you not have been preauthorising? could they not have been preauthorising?