I could digitise you could digitise he could digitise we could digitise you could digitise they could digitise
V-ing form
I could be digitising you could be digitising he could be digitising we could be digitising you could be digitising they could be digitising
Perfect
I could have digitised you could have digitised he could have digitised we could have digitised you could have digitised they could have digitised
V-ing perfect
I could have been digitising you could have been digitising he could have been digitising we could have been digitising you could have been digitising they could have been digitising
Negation
Simple form
I could not digitise you could not digitise he could not digitise we could not digitise you could not digitise they could not digitise
V-ing form
I could not be digitising you could not be digitising he could not be digitising we could not be digitising you could not be digitising they could not be digitising
Perfect
I could not have digitised you could not have digitised he could not have digitised we could not have digitised you could not have digitised they could not have digitised
V-ing perfect
I could not have been digitising you could not have been digitising he could not have been digitising we could not have been digitising you could not have been digitising they could not have been digitising
Interrogative form
Simple form
could I digitise? could you digitise? could he digitise? could we digitise? could you digitise? could they digitise?
V-ing form
could I be digitising? could you be digitising? could he be digitising? could we be digitising? could you be digitising? could they be digitising?
Perfect
could I have digitised? could you have digitised? could he have digitised? could we have digitised? could you have digitised? could they have digitised?
V-ing perfect
could I have been digitising? could you have been digitising? could he have been digitising? could we have been digitising? could you have been digitising? could they have been digitising?
Interro-negative form
Simple form
could I not digitise? could you not digitise? could he not digitise? could we not digitise? could you not digitise? could they not digitise?
V-ing form
could I not be digitising? could you not be digitising? could he not be digitising? could we not be digitising? could you not be digitising? could they not be digitising?
Perfect
could I not have digitised? could you not have digitised? could he not have digitised? could we not have digitised? could you not have digitised? could they not have digitised?
V-ing perfect
could I not have been digitising? could you not have been digitising? could he not have been digitising? could we not have been digitising? could you not have been digitising? could they not have been digitising?