English verb conjugation
COULD RELINQUISH

Regular verb: relinquish - relinquished - relinquished

Affirmation

Simple form	V-ing form
I could relinquish you could relinquish he could relinquish we could relinquish you could relinquish they could relinquish	I could be relinquishing you could be relinquishing he could be relinquishing we could be relinquishing you could be relinquishing they could be relinquishing
Perfect	V-ing perfect
I could have relinquished you could have relinquished he could have relinquished we could have relinquished you could have relinquished they could have relinquished	I could have been relinquishing you could have been relinquishing he could have been relinquishing we could have been relinquishing you could have been relinquishing they could have been relinquishing

Negation

Simple form	V-ing form
I couldn't relinquish you couldn't relinquish he couldn't relinquish we couldn't relinquish you couldn't relinquish they couldn't relinquish	I couldn't be relinquishing you couldn't be relinquishing he couldn't be relinquishing we couldn't be relinquishing you couldn't be relinquishing they couldn't be relinquishing
Perfect	V-ing perfect
I couldn't have relinquished you couldn't have relinquished he couldn't have relinquished we couldn't have relinquished you couldn't have relinquished they couldn't have relinquished	I couldn't have been relinquishing you couldn't have been relinquishing he couldn't have been relinquishing we couldn't have been relinquishing you couldn't have been relinquishing they couldn't have been relinquishing

Interrogative form

Simple form	V-ing form
could I relinquish? could you relinquish? could he relinquish? could we relinquish? could you relinquish? could they relinquish?	could I be relinquishing? could you be relinquishing? could he be relinquishing? could we be relinquishing? could you be relinquishing? could they be relinquishing?
Perfect	V-ing perfect
could I have relinquished? could you have relinquished? could he have relinquished? could we have relinquished? could you have relinquished? could they have relinquished?	could I have been relinquishing? could you have been relinquishing? could he have been relinquishing? could we have been relinquishing? could you have been relinquishing? could they have been relinquishing?

Interro-negative form

Simple form	V-ing form
couldn't I relinquish? couldn't you relinquish? couldn't he relinquish? couldn't we relinquish? couldn't you relinquish? couldn't they relinquish?	couldn't I be relinquishing? couldn't you be relinquishing? couldn't he be relinquishing? couldn't we be relinquishing? couldn't you be relinquishing? couldn't they be relinquishing?
Perfect	V-ing perfect
couldn't I have relinquished? couldn't you have relinquished? couldn't he have relinquished? couldn't we have relinquished? couldn't you have relinquished? couldn't they have relinquished?	couldn't I have been relinquishing? couldn't you have been relinquishing? couldn't he have been relinquishing? couldn't we have been relinquishing? couldn't you have been relinquishing? couldn't they have been relinquishing?