English verb conjugation
COULD AGE

Regular verb: age - aged - aged

Affirmation

Simple form	V-ing form
I could age you could age he could age we could age you could age they could age	I could be aging you could be aging he could be aging we could be aging you could be aging they could be aging
Perfect	V-ing perfect
I could have aged you could have aged he could have aged we could have aged you could have aged they could have aged	I could have been aging you could have been aging he could have been aging we could have been aging you could have been aging they could have been aging

Negation

Simple form	V-ing form
I could not age you could not age he could not age we could not age you could not age they could not age	I could not be aging you could not be aging he could not be aging we could not be aging you could not be aging they could not be aging
Perfect	V-ing perfect
I could not have aged you could not have aged he could not have aged we could not have aged you could not have aged they could not have aged	I could not have been aging you could not have been aging he could not have been aging we could not have been aging you could not have been aging they could not have been aging

Interrogative form

Simple form	V-ing form
could I age? could you age? could he age? could we age? could you age? could they age?	could I be aging? could you be aging? could he be aging? could we be aging? could you be aging? could they be aging?
Perfect	V-ing perfect
could I have aged? could you have aged? could he have aged? could we have aged? could you have aged? could they have aged?	could I have been aging? could you have been aging? could he have been aging? could we have been aging? could you have been aging? could they have been aging?

Interro-negative form

Simple form	V-ing form
could I not age? could you not age? could he not age? could we not age? could you not age? could they not age?	could I not be aging? could you not be aging? could he not be aging? could we not be aging? could you not be aging? could they not be aging?
Perfect	V-ing perfect
could I not have aged? could you not have aged? could he not have aged? could we not have aged? could you not have aged? could they not have aged?	could I not have been aging? could you not have been aging? could he not have been aging? could we not have been aging? could you not have been aging? could they not have been aging?