English verb conjugation
COULD ANGUISH

Regular verb: anguish - anguished - anguished

Affirmation

Simple form	V-ing form
I could anguish you could anguish he could anguish we could anguish you could anguish they could anguish	I could be anguishing you could be anguishing he could be anguishing we could be anguishing you could be anguishing they could be anguishing
Perfect	V-ing perfect
I could have anguished you could have anguished he could have anguished we could have anguished you could have anguished they could have anguished	I could have been anguishing you could have been anguishing he could have been anguishing we could have been anguishing you could have been anguishing they could have been anguishing

Negation

Simple form	V-ing form
I couldn't anguish you couldn't anguish he couldn't anguish we couldn't anguish you couldn't anguish they couldn't anguish	I couldn't be anguishing you couldn't be anguishing he couldn't be anguishing we couldn't be anguishing you couldn't be anguishing they couldn't be anguishing
Perfect	V-ing perfect
I couldn't have anguished you couldn't have anguished he couldn't have anguished we couldn't have anguished you couldn't have anguished they couldn't have anguished	I couldn't have been anguishing you couldn't have been anguishing he couldn't have been anguishing we couldn't have been anguishing you couldn't have been anguishing they couldn't have been anguishing

Interrogative form

Simple form	V-ing form
could I anguish? could you anguish? could he anguish? could we anguish? could you anguish? could they anguish?	could I be anguishing? could you be anguishing? could he be anguishing? could we be anguishing? could you be anguishing? could they be anguishing?
Perfect	V-ing perfect
could I have anguished? could you have anguished? could he have anguished? could we have anguished? could you have anguished? could they have anguished?	could I have been anguishing? could you have been anguishing? could he have been anguishing? could we have been anguishing? could you have been anguishing? could they have been anguishing?

Interro-negative form

Simple form	V-ing form
couldn't I anguish? couldn't you anguish? couldn't he anguish? couldn't we anguish? couldn't you anguish? couldn't they anguish?	couldn't I be anguishing? couldn't you be anguishing? couldn't he be anguishing? couldn't we be anguishing? couldn't you be anguishing? couldn't they be anguishing?
Perfect	V-ing perfect
couldn't I have anguished? couldn't you have anguished? couldn't he have anguished? couldn't we have anguished? couldn't you have anguished? couldn't they have anguished?	couldn't I have been anguishing? couldn't you have been anguishing? couldn't he have been anguishing? couldn't we have been anguishing? couldn't you have been anguishing? couldn't they have been anguishing?