I could editorialise you could editorialise he could editorialise we could editorialise you could editorialise they could editorialise
V-ing form
I could be editorialising you could be editorialising he could be editorialising we could be editorialising you could be editorialising they could be editorialising
Perfect
I could have editorialised you could have editorialised he could have editorialised we could have editorialised you could have editorialised they could have editorialised
V-ing perfect
I could have been editorialising you could have been editorialising he could have been editorialising we could have been editorialising you could have been editorialising they could have been editorialising
Negation
Simple form
I couldn't editorialise you couldn't editorialise he couldn't editorialise we couldn't editorialise you couldn't editorialise they couldn't editorialise
V-ing form
I couldn't be editorialising you couldn't be editorialising he couldn't be editorialising we couldn't be editorialising you couldn't be editorialising they couldn't be editorialising
Perfect
I couldn't have editorialised you couldn't have editorialised he couldn't have editorialised we couldn't have editorialised you couldn't have editorialised they couldn't have editorialised
V-ing perfect
I couldn't have been editorialising you couldn't have been editorialising he couldn't have been editorialising we couldn't have been editorialising you couldn't have been editorialising they couldn't have been editorialising
Interrogative form
Simple form
could I editorialise? could you editorialise? could he editorialise? could we editorialise? could you editorialise? could they editorialise?
V-ing form
could I be editorialising? could you be editorialising? could he be editorialising? could we be editorialising? could you be editorialising? could they be editorialising?
Perfect
could I have editorialised? could you have editorialised? could he have editorialised? could we have editorialised? could you have editorialised? could they have editorialised?
V-ing perfect
could I have been editorialising? could you have been editorialising? could he have been editorialising? could we have been editorialising? could you have been editorialising? could they have been editorialising?
Interro-negative form
Simple form
couldn't I editorialise? couldn't you editorialise? couldn't he editorialise? couldn't we editorialise? couldn't you editorialise? couldn't they editorialise?
V-ing form
couldn't I be editorialising? couldn't you be editorialising? couldn't he be editorialising? couldn't we be editorialising? couldn't you be editorialising? couldn't they be editorialising?
Perfect
couldn't I have editorialised? couldn't you have editorialised? couldn't he have editorialised? couldn't we have editorialised? couldn't you have editorialised? couldn't they have editorialised?
V-ing perfect
couldn't I have been editorialising? couldn't you have been editorialising? couldn't he have been editorialising? couldn't we have been editorialising? couldn't you have been editorialising? couldn't they have been editorialising?