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