English verb conjugation
COULD SACRIFICE

Regular verb: sacrifice - sacrificed - sacrificed

Affirmation

Simple form	V-ing form
I could sacrifice you could sacrifice she could sacrifice we could sacrifice you could sacrifice they could sacrifice	I could be sacrificing you could be sacrificing she could be sacrificing we could be sacrificing you could be sacrificing they could be sacrificing
Perfect	V-ing perfect
I could have sacrificed you could have sacrificed she could have sacrificed we could have sacrificed you could have sacrificed they could have sacrificed	I could have been sacrificing you could have been sacrificing she could have been sacrificing we could have been sacrificing you could have been sacrificing they could have been sacrificing

Negation

Simple form	V-ing form
I couldn't sacrifice you couldn't sacrifice she couldn't sacrifice we couldn't sacrifice you couldn't sacrifice they couldn't sacrifice	I couldn't be sacrificing you couldn't be sacrificing she couldn't be sacrificing we couldn't be sacrificing you couldn't be sacrificing they couldn't be sacrificing
Perfect	V-ing perfect
I couldn't have sacrificed you couldn't have sacrificed she couldn't have sacrificed we couldn't have sacrificed you couldn't have sacrificed they couldn't have sacrificed	I couldn't have been sacrificing you couldn't have been sacrificing she couldn't have been sacrificing we couldn't have been sacrificing you couldn't have been sacrificing they couldn't have been sacrificing

Interrogative form

Simple form	V-ing form
could I sacrifice? could you sacrifice? could she sacrifice? could we sacrifice? could you sacrifice? could they sacrifice?	could I be sacrificing? could you be sacrificing? could she be sacrificing? could we be sacrificing? could you be sacrificing? could they be sacrificing?
Perfect	V-ing perfect
could I have sacrificed? could you have sacrificed? could she have sacrificed? could we have sacrificed? could you have sacrificed? could they have sacrificed?	could I have been sacrificing? could you have been sacrificing? could she have been sacrificing? could we have been sacrificing? could you have been sacrificing? could they have been sacrificing?

Interro-negative form

Simple form	V-ing form
couldn't I sacrifice? couldn't you sacrifice? couldn't she sacrifice? couldn't we sacrifice? couldn't you sacrifice? couldn't they sacrifice?	couldn't I be sacrificing? couldn't you be sacrificing? couldn't she be sacrificing? couldn't we be sacrificing? couldn't you be sacrificing? couldn't they be sacrificing?
Perfect	V-ing perfect
couldn't I have sacrificed? couldn't you have sacrificed? couldn't she have sacrificed? couldn't we have sacrificed? couldn't you have sacrificed? couldn't they have sacrificed?	couldn't I have been sacrificing? couldn't you have been sacrificing? couldn't she have been sacrificing? couldn't we have been sacrificing? couldn't you have been sacrificing? couldn't they have been sacrificing?