English verb conjugation
COULD DECARBONISE

Regular verb: decarbonise - decarbonised - decarbonised

Affirmation

Simple form	V-ing form
I could decarbonise you could decarbonise he could decarbonise we could decarbonise you could decarbonise they could decarbonise	I could be decarbonising you could be decarbonising he could be decarbonising we could be decarbonising you could be decarbonising they could be decarbonising
Perfect	V-ing perfect
I could have decarbonised you could have decarbonised he could have decarbonised we could have decarbonised you could have decarbonised they could have decarbonised	I could have been decarbonising you could have been decarbonising he could have been decarbonising we could have been decarbonising you could have been decarbonising they could have been decarbonising

Negation

Simple form	V-ing form
I could not decarbonise you could not decarbonise he could not decarbonise we could not decarbonise you could not decarbonise they could not decarbonise	I could not be decarbonising you could not be decarbonising he could not be decarbonising we could not be decarbonising you could not be decarbonising they could not be decarbonising
Perfect	V-ing perfect
I could not have decarbonised you could not have decarbonised he could not have decarbonised we could not have decarbonised you could not have decarbonised they could not have decarbonised	I could not have been decarbonising you could not have been decarbonising he could not have been decarbonising we could not have been decarbonising you could not have been decarbonising they could not have been decarbonising

Interrogative form

Simple form	V-ing form
could I decarbonise? could you decarbonise? could he decarbonise? could we decarbonise? could you decarbonise? could they decarbonise?	could I be decarbonising? could you be decarbonising? could he be decarbonising? could we be decarbonising? could you be decarbonising? could they be decarbonising?
Perfect	V-ing perfect
could I have decarbonised? could you have decarbonised? could he have decarbonised? could we have decarbonised? could you have decarbonised? could they have decarbonised?	could I have been decarbonising? could you have been decarbonising? could he have been decarbonising? could we have been decarbonising? could you have been decarbonising? could they have been decarbonising?

Interro-negative form

Simple form	V-ing form
could I not decarbonise? could you not decarbonise? could he not decarbonise? could we not decarbonise? could you not decarbonise? could they not decarbonise?	could I not be decarbonising? could you not be decarbonising? could he not be decarbonising? could we not be decarbonising? could you not be decarbonising? could they not be decarbonising?
Perfect	V-ing perfect
could I not have decarbonised? could you not have decarbonised? could he not have decarbonised? could we not have decarbonised? could you not have decarbonised? could they not have decarbonised?	could I not have been decarbonising? could you not have been decarbonising? could he not have been decarbonising? could we not have been decarbonising? could you not have been decarbonising? could they not have been decarbonising?