I could capitalise you could capitalise he could capitalise we could capitalise you could capitalise they could capitalise
V-ing form
I could be capitalising you could be capitalising he could be capitalising we could be capitalising you could be capitalising they could be capitalising
Perfect
I could have capitalised you could have capitalised he could have capitalised we could have capitalised you could have capitalised they could have capitalised
V-ing perfect
I could have been capitalising you could have been capitalising he could have been capitalising we could have been capitalising you could have been capitalising they could have been capitalising
Negation
Simple form
I could not capitalise you could not capitalise he could not capitalise we could not capitalise you could not capitalise they could not capitalise
V-ing form
I could not be capitalising you could not be capitalising he could not be capitalising we could not be capitalising you could not be capitalising they could not be capitalising
Perfect
I could not have capitalised you could not have capitalised he could not have capitalised we could not have capitalised you could not have capitalised they could not have capitalised
V-ing perfect
I could not have been capitalising you could not have been capitalising he could not have been capitalising we could not have been capitalising you could not have been capitalising they could not have been capitalising
Interrogative form
Simple form
could I capitalise? could you capitalise? could he capitalise? could we capitalise? could you capitalise? could they capitalise?
V-ing form
could I be capitalising? could you be capitalising? could he be capitalising? could we be capitalising? could you be capitalising? could they be capitalising?
Perfect
could I have capitalised? could you have capitalised? could he have capitalised? could we have capitalised? could you have capitalised? could they have capitalised?
V-ing perfect
could I have been capitalising? could you have been capitalising? could he have been capitalising? could we have been capitalising? could you have been capitalising? could they have been capitalising?
Interro-negative form
Simple form
could I not capitalise? could you not capitalise? could he not capitalise? could we not capitalise? could you not capitalise? could they not capitalise?
V-ing form
could I not be capitalising? could you not be capitalising? could he not be capitalising? could we not be capitalising? could you not be capitalising? could they not be capitalising?
Perfect
could I not have capitalised? could you not have capitalised? could he not have capitalised? could we not have capitalised? could you not have capitalised? could they not have capitalised?
V-ing perfect
could I not have been capitalising? could you not have been capitalising? could he not have been capitalising? could we not have been capitalising? could you not have been capitalising? could they not have been capitalising?