English verb conjugation
COULD GROW

Irregular verb: grow - grew - grown

Affirmation

Simple form	V-ing form
I could grow you could grow he could grow we could grow you could grow they could grow	I could be growing you could be growing he could be growing we could be growing you could be growing they could be growing
Perfect	V-ing perfect
I could have grown you could have grown he could have grown we could have grown you could have grown they could have grown	I could have been growing you could have been growing he could have been growing we could have been growing you could have been growing they could have been growing

Negation

Simple form	V-ing form
I could not grow you could not grow he could not grow we could not grow you could not grow they could not grow	I could not be growing you could not be growing he could not be growing we could not be growing you could not be growing they could not be growing
Perfect	V-ing perfect
I could not have grown you could not have grown he could not have grown we could not have grown you could not have grown they could not have grown	I could not have been growing you could not have been growing he could not have been growing we could not have been growing you could not have been growing they could not have been growing

Interrogative form

Simple form	V-ing form
could I grow? could you grow? could he grow? could we grow? could you grow? could they grow?	could I be growing? could you be growing? could he be growing? could we be growing? could you be growing? could they be growing?
Perfect	V-ing perfect
could I have grown? could you have grown? could he have grown? could we have grown? could you have grown? could they have grown?	could I have been growing? could you have been growing? could he have been growing? could we have been growing? could you have been growing? could they have been growing?

Interro-negative form

Simple form	V-ing form
could I not grow? could you not grow? could he not grow? could we not grow? could you not grow? could they not grow?	could I not be growing? could you not be growing? could he not be growing? could we not be growing? could you not be growing? could they not be growing?
Perfect	V-ing perfect
could I not have grown? could you not have grown? could he not have grown? could we not have grown? could you not have grown? could they not have grown?	could I not have been growing? could you not have been growing? could he not have been growing? could we not have been growing? could you not have been growing? could they not have been growing?