English verb conjugation
COULD DECARBONIZE

Regular verb: decarbonize - decarbonized - decarbonized

Affirmation

Simple form	V-ing form
I could decarbonize you could decarbonize he could decarbonize we could decarbonize you could decarbonize they could decarbonize	I could be decarbonizing you could be decarbonizing he could be decarbonizing we could be decarbonizing you could be decarbonizing they could be decarbonizing
Perfect	V-ing perfect
I could have decarbonized you could have decarbonized he could have decarbonized we could have decarbonized you could have decarbonized they could have decarbonized	I could have been decarbonizing you could have been decarbonizing he could have been decarbonizing we could have been decarbonizing you could have been decarbonizing they could have been decarbonizing

Negation

Simple form	V-ing form
I couldn't decarbonize you couldn't decarbonize he couldn't decarbonize we couldn't decarbonize you couldn't decarbonize they couldn't decarbonize	I couldn't be decarbonizing you couldn't be decarbonizing he couldn't be decarbonizing we couldn't be decarbonizing you couldn't be decarbonizing they couldn't be decarbonizing
Perfect	V-ing perfect
I couldn't have decarbonized you couldn't have decarbonized he couldn't have decarbonized we couldn't have decarbonized you couldn't have decarbonized they couldn't have decarbonized	I couldn't have been decarbonizing you couldn't have been decarbonizing he couldn't have been decarbonizing we couldn't have been decarbonizing you couldn't have been decarbonizing they couldn't have been decarbonizing

Interrogative form

Simple form	V-ing form
could I decarbonize? could you decarbonize? could he decarbonize? could we decarbonize? could you decarbonize? could they decarbonize?	could I be decarbonizing? could you be decarbonizing? could he be decarbonizing? could we be decarbonizing? could you be decarbonizing? could they be decarbonizing?
Perfect	V-ing perfect
could I have decarbonized? could you have decarbonized? could he have decarbonized? could we have decarbonized? could you have decarbonized? could they have decarbonized?	could I have been decarbonizing? could you have been decarbonizing? could he have been decarbonizing? could we have been decarbonizing? could you have been decarbonizing? could they have been decarbonizing?

Interro-negative form

Simple form	V-ing form
couldn't I decarbonize? couldn't you decarbonize? couldn't he decarbonize? couldn't we decarbonize? couldn't you decarbonize? couldn't they decarbonize?	couldn't I be decarbonizing? couldn't you be decarbonizing? couldn't he be decarbonizing? couldn't we be decarbonizing? couldn't you be decarbonizing? couldn't they be decarbonizing?
Perfect	V-ing perfect
couldn't I have decarbonized? couldn't you have decarbonized? couldn't he have decarbonized? couldn't we have decarbonized? couldn't you have decarbonized? couldn't they have decarbonized?	couldn't I have been decarbonizing? couldn't you have been decarbonizing? couldn't he have been decarbonizing? couldn't we have been decarbonizing? couldn't you have been decarbonizing? couldn't they have been decarbonizing?