English verb conjugation
COULD ERUCT

Regular verb: eruct - eructed - eructed

Affirmation

Simple form	V-ing form
I could eruct you could eruct she could eruct we could eruct you could eruct they could eruct	I could be eructing you could be eructing she could be eructing we could be eructing you could be eructing they could be eructing
Perfect	V-ing perfect
I could have eructed you could have eructed she could have eructed we could have eructed you could have eructed they could have eructed	I could have been eructing you could have been eructing she could have been eructing we could have been eructing you could have been eructing they could have been eructing

Negation

Simple form	V-ing form
I couldn't eruct you couldn't eruct she couldn't eruct we couldn't eruct you couldn't eruct they couldn't eruct	I couldn't be eructing you couldn't be eructing she couldn't be eructing we couldn't be eructing you couldn't be eructing they couldn't be eructing
Perfect	V-ing perfect
I couldn't have eructed you couldn't have eructed she couldn't have eructed we couldn't have eructed you couldn't have eructed they couldn't have eructed	I couldn't have been eructing you couldn't have been eructing she couldn't have been eructing we couldn't have been eructing you couldn't have been eructing they couldn't have been eructing

Interrogative form

Simple form	V-ing form
could I eruct? could you eruct? could she eruct? could we eruct? could you eruct? could they eruct?	could I be eructing? could you be eructing? could she be eructing? could we be eructing? could you be eructing? could they be eructing?
Perfect	V-ing perfect
could I have eructed? could you have eructed? could she have eructed? could we have eructed? could you have eructed? could they have eructed?	could I have been eructing? could you have been eructing? could she have been eructing? could we have been eructing? could you have been eructing? could they have been eructing?

Interro-negative form

Simple form	V-ing form
couldn't I eruct? couldn't you eruct? couldn't she eruct? couldn't we eruct? couldn't you eruct? couldn't they eruct?	couldn't I be eructing? couldn't you be eructing? couldn't she be eructing? couldn't we be eructing? couldn't you be eructing? couldn't they be eructing?
Perfect	V-ing perfect
couldn't I have eructed? couldn't you have eructed? couldn't she have eructed? couldn't we have eructed? couldn't you have eructed? couldn't they have eructed?	couldn't I have been eructing? couldn't you have been eructing? couldn't she have been eructing? couldn't we have been eructing? couldn't you have been eructing? couldn't they have been eructing?