English verb conjugation
COULD PREADVERTIZE

Regular verb: preadvertize - preadvertized - preadvertized

Affirmation

Simple form	V-ing form
I could preadvertize you could preadvertize he could preadvertize we could preadvertize you could preadvertize they could preadvertize	I could be preadvertizing you could be preadvertizing he could be preadvertizing we could be preadvertizing you could be preadvertizing they could be preadvertizing
Perfect	V-ing perfect
I could have preadvertized you could have preadvertized he could have preadvertized we could have preadvertized you could have preadvertized they could have preadvertized	I could have been preadvertizing you could have been preadvertizing he could have been preadvertizing we could have been preadvertizing you could have been preadvertizing they could have been preadvertizing

Negation

Simple form	V-ing form
I could not preadvertize you could not preadvertize he could not preadvertize we could not preadvertize you could not preadvertize they could not preadvertize	I could not be preadvertizing you could not be preadvertizing he could not be preadvertizing we could not be preadvertizing you could not be preadvertizing they could not be preadvertizing
Perfect	V-ing perfect
I could not have preadvertized you could not have preadvertized he could not have preadvertized we could not have preadvertized you could not have preadvertized they could not have preadvertized	I could not have been preadvertizing you could not have been preadvertizing he could not have been preadvertizing we could not have been preadvertizing you could not have been preadvertizing they could not have been preadvertizing

Interrogative form

Simple form	V-ing form
could I preadvertize? could you preadvertize? could he preadvertize? could we preadvertize? could you preadvertize? could they preadvertize?	could I be preadvertizing? could you be preadvertizing? could he be preadvertizing? could we be preadvertizing? could you be preadvertizing? could they be preadvertizing?
Perfect	V-ing perfect
could I have preadvertized? could you have preadvertized? could he have preadvertized? could we have preadvertized? could you have preadvertized? could they have preadvertized?	could I have been preadvertizing? could you have been preadvertizing? could he have been preadvertizing? could we have been preadvertizing? could you have been preadvertizing? could they have been preadvertizing?

Interro-negative form

Simple form	V-ing form
could I not preadvertize? could you not preadvertize? could he not preadvertize? could we not preadvertize? could you not preadvertize? could they not preadvertize?	could I not be preadvertizing? could you not be preadvertizing? could he not be preadvertizing? could we not be preadvertizing? could you not be preadvertizing? could they not be preadvertizing?
Perfect	V-ing perfect
could I not have preadvertized? could you not have preadvertized? could he not have preadvertized? could we not have preadvertized? could you not have preadvertized? could they not have preadvertized?	could I not have been preadvertizing? could you not have been preadvertizing? could he not have been preadvertizing? could we not have been preadvertizing? could you not have been preadvertizing? could they not have been preadvertizing?