English verb conjugation
COULD PERPETUATE

Regular verb: perpetuate - perpetuated - perpetuated

Affirmation

Simple form	V-ing form
I could perpetuate you could perpetuate she could perpetuate we could perpetuate you could perpetuate they could perpetuate	I could be perpetuating you could be perpetuating she could be perpetuating we could be perpetuating you could be perpetuating they could be perpetuating
Perfect	V-ing perfect
I could have perpetuated you could have perpetuated she could have perpetuated we could have perpetuated you could have perpetuated they could have perpetuated	I could have been perpetuating you could have been perpetuating she could have been perpetuating we could have been perpetuating you could have been perpetuating they could have been perpetuating

Negation

Simple form	V-ing form
I could not perpetuate you could not perpetuate she could not perpetuate we could not perpetuate you could not perpetuate they could not perpetuate	I could not be perpetuating you could not be perpetuating she could not be perpetuating we could not be perpetuating you could not be perpetuating they could not be perpetuating
Perfect	V-ing perfect
I could not have perpetuated you could not have perpetuated she could not have perpetuated we could not have perpetuated you could not have perpetuated they could not have perpetuated	I could not have been perpetuating you could not have been perpetuating she could not have been perpetuating we could not have been perpetuating you could not have been perpetuating they could not have been perpetuating

Interrogative form

Simple form	V-ing form
could I perpetuate? could you perpetuate? could she perpetuate? could we perpetuate? could you perpetuate? could they perpetuate?	could I be perpetuating? could you be perpetuating? could she be perpetuating? could we be perpetuating? could you be perpetuating? could they be perpetuating?
Perfect	V-ing perfect
could I have perpetuated? could you have perpetuated? could she have perpetuated? could we have perpetuated? could you have perpetuated? could they have perpetuated?	could I have been perpetuating? could you have been perpetuating? could she have been perpetuating? could we have been perpetuating? could you have been perpetuating? could they have been perpetuating?

Interro-negative form

Simple form	V-ing form
could I not perpetuate? could you not perpetuate? could she not perpetuate? could we not perpetuate? could you not perpetuate? could they not perpetuate?	could I not be perpetuating? could you not be perpetuating? could she not be perpetuating? could we not be perpetuating? could you not be perpetuating? could they not be perpetuating?
Perfect	V-ing perfect
could I not have perpetuated? could you not have perpetuated? could she not have perpetuated? could we not have perpetuated? could you not have perpetuated? could they not have perpetuated?	could I not have been perpetuating? could you not have been perpetuating? could she not have been perpetuating? could we not have been perpetuating? could you not have been perpetuating? could they not have been perpetuating?