I could passivise you could passivise she could passivise we could passivise you could passivise they could passivise
V-ing form
I could be passivising you could be passivising she could be passivising we could be passivising you could be passivising they could be passivising
Perfect
I could have passivised you could have passivised she could have passivised we could have passivised you could have passivised they could have passivised
V-ing perfect
I could have been passivising you could have been passivising she could have been passivising we could have been passivising you could have been passivising they could have been passivising
Negation
Simple form
I could not passivise you could not passivise she could not passivise we could not passivise you could not passivise they could not passivise
V-ing form
I could not be passivising you could not be passivising she could not be passivising we could not be passivising you could not be passivising they could not be passivising
Perfect
I could not have passivised you could not have passivised she could not have passivised we could not have passivised you could not have passivised they could not have passivised
V-ing perfect
I could not have been passivising you could not have been passivising she could not have been passivising we could not have been passivising you could not have been passivising they could not have been passivising
Interrogative form
Simple form
could I passivise? could you passivise? could she passivise? could we passivise? could you passivise? could they passivise?
V-ing form
could I be passivising? could you be passivising? could she be passivising? could we be passivising? could you be passivising? could they be passivising?
Perfect
could I have passivised? could you have passivised? could she have passivised? could we have passivised? could you have passivised? could they have passivised?
V-ing perfect
could I have been passivising? could you have been passivising? could she have been passivising? could we have been passivising? could you have been passivising? could they have been passivising?
Interro-negative form
Simple form
could I not passivise? could you not passivise? could she not passivise? could we not passivise? could you not passivise? could they not passivise?
V-ing form
could I not be passivising? could you not be passivising? could she not be passivising? could we not be passivising? could you not be passivising? could they not be passivising?
Perfect
could I not have passivised? could you not have passivised? could she not have passivised? could we not have passivised? could you not have passivised? could they not have passivised?
V-ing perfect
could I not have been passivising? could you not have been passivising? could she not have been passivising? could we not have been passivising? could you not have been passivising? could they not have been passivising?