English verb conjugation
COULD PRECOMPUTE

Regular verb: precompute - precomputed - precomputed

Affirmation

Simple form	V-ing form
I could precompute you could precompute he could precompute we could precompute you could precompute they could precompute	I could be precomputing you could be precomputing he could be precomputing we could be precomputing you could be precomputing they could be precomputing
Perfect	V-ing perfect
I could have precomputed you could have precomputed he could have precomputed we could have precomputed you could have precomputed they could have precomputed	I could have been precomputing you could have been precomputing he could have been precomputing we could have been precomputing you could have been precomputing they could have been precomputing

Negation

Simple form	V-ing form
I couldn't precompute you couldn't precompute he couldn't precompute we couldn't precompute you couldn't precompute they couldn't precompute	I couldn't be precomputing you couldn't be precomputing he couldn't be precomputing we couldn't be precomputing you couldn't be precomputing they couldn't be precomputing
Perfect	V-ing perfect
I couldn't have precomputed you couldn't have precomputed he couldn't have precomputed we couldn't have precomputed you couldn't have precomputed they couldn't have precomputed	I couldn't have been precomputing you couldn't have been precomputing he couldn't have been precomputing we couldn't have been precomputing you couldn't have been precomputing they couldn't have been precomputing

Interrogative form

Simple form	V-ing form
could I precompute? could you precompute? could he precompute? could we precompute? could you precompute? could they precompute?	could I be precomputing? could you be precomputing? could he be precomputing? could we be precomputing? could you be precomputing? could they be precomputing?
Perfect	V-ing perfect
could I have precomputed? could you have precomputed? could he have precomputed? could we have precomputed? could you have precomputed? could they have precomputed?	could I have been precomputing? could you have been precomputing? could he have been precomputing? could we have been precomputing? could you have been precomputing? could they have been precomputing?

Interro-negative form

Simple form	V-ing form
couldn't I precompute? couldn't you precompute? couldn't he precompute? couldn't we precompute? couldn't you precompute? couldn't they precompute?	couldn't I be precomputing? couldn't you be precomputing? couldn't he be precomputing? couldn't we be precomputing? couldn't you be precomputing? couldn't they be precomputing?
Perfect	V-ing perfect
couldn't I have precomputed? couldn't you have precomputed? couldn't he have precomputed? couldn't we have precomputed? couldn't you have precomputed? couldn't they have precomputed?	couldn't I have been precomputing? couldn't you have been precomputing? couldn't he have been precomputing? couldn't we have been precomputing? couldn't you have been precomputing? couldn't they have been precomputing?