I could annualise you could annualise she could annualise we could annualise you could annualise they could annualise
V-ing form
I could be annualising you could be annualising she could be annualising we could be annualising you could be annualising they could be annualising
Perfect
I could have annualised you could have annualised she could have annualised we could have annualised you could have annualised they could have annualised
V-ing perfect
I could have been annualising you could have been annualising she could have been annualising we could have been annualising you could have been annualising they could have been annualising
Negation
Simple form
I couldn't annualise you couldn't annualise she couldn't annualise we couldn't annualise you couldn't annualise they couldn't annualise
V-ing form
I couldn't be annualising you couldn't be annualising she couldn't be annualising we couldn't be annualising you couldn't be annualising they couldn't be annualising
Perfect
I couldn't have annualised you couldn't have annualised she couldn't have annualised we couldn't have annualised you couldn't have annualised they couldn't have annualised
V-ing perfect
I couldn't have been annualising you couldn't have been annualising she couldn't have been annualising we couldn't have been annualising you couldn't have been annualising they couldn't have been annualising
Interrogative form
Simple form
could I annualise? could you annualise? could she annualise? could we annualise? could you annualise? could they annualise?
V-ing form
could I be annualising? could you be annualising? could she be annualising? could we be annualising? could you be annualising? could they be annualising?
Perfect
could I have annualised? could you have annualised? could she have annualised? could we have annualised? could you have annualised? could they have annualised?
V-ing perfect
could I have been annualising? could you have been annualising? could she have been annualising? could we have been annualising? could you have been annualising? could they have been annualising?
Interro-negative form
Simple form
couldn't I annualise? couldn't you annualise? couldn't she annualise? couldn't we annualise? couldn't you annualise? couldn't they annualise?
V-ing form
couldn't I be annualising? couldn't you be annualising? couldn't she be annualising? couldn't we be annualising? couldn't you be annualising? couldn't they be annualising?
Perfect
couldn't I have annualised? couldn't you have annualised? couldn't she have annualised? couldn't we have annualised? couldn't you have annualised? couldn't they have annualised?
V-ing perfect
couldn't I have been annualising? couldn't you have been annualising? couldn't she have been annualising? couldn't we have been annualising? couldn't you have been annualising? couldn't they have been annualising?