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