I could resterilise you could resterilise he could resterilise we could resterilise you could resterilise they could resterilise
V-ing form
I could be resterilising you could be resterilising he could be resterilising we could be resterilising you could be resterilising they could be resterilising
Perfect
I could have resterilised you could have resterilised he could have resterilised we could have resterilised you could have resterilised they could have resterilised
V-ing perfect
I could have been resterilising you could have been resterilising he could have been resterilising we could have been resterilising you could have been resterilising they could have been resterilising
Negation
Simple form
I could not resterilise you could not resterilise he could not resterilise we could not resterilise you could not resterilise they could not resterilise
V-ing form
I could not be resterilising you could not be resterilising he could not be resterilising we could not be resterilising you could not be resterilising they could not be resterilising
Perfect
I could not have resterilised you could not have resterilised he could not have resterilised we could not have resterilised you could not have resterilised they could not have resterilised
V-ing perfect
I could not have been resterilising you could not have been resterilising he could not have been resterilising we could not have been resterilising you could not have been resterilising they could not have been resterilising
Interrogative form
Simple form
could I resterilise? could you resterilise? could he resterilise? could we resterilise? could you resterilise? could they resterilise?
V-ing form
could I be resterilising? could you be resterilising? could he be resterilising? could we be resterilising? could you be resterilising? could they be resterilising?
Perfect
could I have resterilised? could you have resterilised? could he have resterilised? could we have resterilised? could you have resterilised? could they have resterilised?
V-ing perfect
could I have been resterilising? could you have been resterilising? could he have been resterilising? could we have been resterilising? could you have been resterilising? could they have been resterilising?
Interro-negative form
Simple form
could I not resterilise? could you not resterilise? could he not resterilise? could we not resterilise? could you not resterilise? could they not resterilise?
V-ing form
could I not be resterilising? could you not be resterilising? could he not be resterilising? could we not be resterilising? could you not be resterilising? could they not be resterilising?
Perfect
could I not have resterilised? could you not have resterilised? could he not have resterilised? could we not have resterilised? could you not have resterilised? could they not have resterilised?
V-ing perfect
could I not have been resterilising? could you not have been resterilising? could he not have been resterilising? could we not have been resterilising? could you not have been resterilising? could they not have been resterilising?