I could personalise you could personalise he could personalise we could personalise you could personalise they could personalise
V-ing form
I could be personalising you could be personalising he could be personalising we could be personalising you could be personalising they could be personalising
Perfect
I could have personalised you could have personalised he could have personalised we could have personalised you could have personalised they could have personalised
V-ing perfect
I could have been personalising you could have been personalising he could have been personalising we could have been personalising you could have been personalising they could have been personalising
Negation
Simple form
I could not personalise you could not personalise he could not personalise we could not personalise you could not personalise they could not personalise
V-ing form
I could not be personalising you could not be personalising he could not be personalising we could not be personalising you could not be personalising they could not be personalising
Perfect
I could not have personalised you could not have personalised he could not have personalised we could not have personalised you could not have personalised they could not have personalised
V-ing perfect
I could not have been personalising you could not have been personalising he could not have been personalising we could not have been personalising you could not have been personalising they could not have been personalising
Interrogative form
Simple form
could I personalise? could you personalise? could he personalise? could we personalise? could you personalise? could they personalise?
V-ing form
could I be personalising? could you be personalising? could he be personalising? could we be personalising? could you be personalising? could they be personalising?
Perfect
could I have personalised? could you have personalised? could he have personalised? could we have personalised? could you have personalised? could they have personalised?
V-ing perfect
could I have been personalising? could you have been personalising? could he have been personalising? could we have been personalising? could you have been personalising? could they have been personalising?
Interro-negative form
Simple form
could I not personalise? could you not personalise? could he not personalise? could we not personalise? could you not personalise? could they not personalise?
V-ing form
could I not be personalising? could you not be personalising? could he not be personalising? could we not be personalising? could you not be personalising? could they not be personalising?
Perfect
could I not have personalised? could you not have personalised? could he not have personalised? could we not have personalised? could you not have personalised? could they not have personalised?
V-ing perfect
could I not have been personalising? could you not have been personalising? could he not have been personalising? could we not have been personalising? could you not have been personalising? could they not have been personalising?