English verb conjugation
COULD ANTAGONIZE

Regular verb: antagonize - antagonized - antagonized

Affirmation

Simple form	V-ing form
I could antagonize you could antagonize she could antagonize we could antagonize you could antagonize they could antagonize	I could be antagonizing you could be antagonizing she could be antagonizing we could be antagonizing you could be antagonizing they could be antagonizing
Perfect	V-ing perfect
I could have antagonized you could have antagonized she could have antagonized we could have antagonized you could have antagonized they could have antagonized	I could have been antagonizing you could have been antagonizing she could have been antagonizing we could have been antagonizing you could have been antagonizing they could have been antagonizing

Negation

Simple form	V-ing form
I couldn't antagonize you couldn't antagonize she couldn't antagonize we couldn't antagonize you couldn't antagonize they couldn't antagonize	I couldn't be antagonizing you couldn't be antagonizing she couldn't be antagonizing we couldn't be antagonizing you couldn't be antagonizing they couldn't be antagonizing
Perfect	V-ing perfect
I couldn't have antagonized you couldn't have antagonized she couldn't have antagonized we couldn't have antagonized you couldn't have antagonized they couldn't have antagonized	I couldn't have been antagonizing you couldn't have been antagonizing she couldn't have been antagonizing we couldn't have been antagonizing you couldn't have been antagonizing they couldn't have been antagonizing

Interrogative form

Simple form	V-ing form
could I antagonize? could you antagonize? could she antagonize? could we antagonize? could you antagonize? could they antagonize?	could I be antagonizing? could you be antagonizing? could she be antagonizing? could we be antagonizing? could you be antagonizing? could they be antagonizing?
Perfect	V-ing perfect
could I have antagonized? could you have antagonized? could she have antagonized? could we have antagonized? could you have antagonized? could they have antagonized?	could I have been antagonizing? could you have been antagonizing? could she have been antagonizing? could we have been antagonizing? could you have been antagonizing? could they have been antagonizing?

Interro-negative form

Simple form	V-ing form
couldn't I antagonize? couldn't you antagonize? couldn't she antagonize? couldn't we antagonize? couldn't you antagonize? couldn't they antagonize?	couldn't I be antagonizing? couldn't you be antagonizing? couldn't she be antagonizing? couldn't we be antagonizing? couldn't you be antagonizing? couldn't they be antagonizing?
Perfect	V-ing perfect
couldn't I have antagonized? couldn't you have antagonized? couldn't she have antagonized? couldn't we have antagonized? couldn't you have antagonized? couldn't they have antagonized?	couldn't I have been antagonizing? couldn't you have been antagonizing? couldn't she have been antagonizing? couldn't we have been antagonizing? couldn't you have been antagonizing? couldn't they have been antagonizing?