English verb conjugation
COULD PRESUME

Regular verb: presume - presumed - presumed

Affirmation

Simple form	V-ing form
I could presume you could presume she could presume we could presume you could presume they could presume	I could be presuming you could be presuming she could be presuming we could be presuming you could be presuming they could be presuming
Perfect	V-ing perfect
I could have presumed you could have presumed she could have presumed we could have presumed you could have presumed they could have presumed	I could have been presuming you could have been presuming she could have been presuming we could have been presuming you could have been presuming they could have been presuming

Negation

Simple form	V-ing form
I could not presume you could not presume she could not presume we could not presume you could not presume they could not presume	I could not be presuming you could not be presuming she could not be presuming we could not be presuming you could not be presuming they could not be presuming
Perfect	V-ing perfect
I could not have presumed you could not have presumed she could not have presumed we could not have presumed you could not have presumed they could not have presumed	I could not have been presuming you could not have been presuming she could not have been presuming we could not have been presuming you could not have been presuming they could not have been presuming

Interrogative form

Simple form	V-ing form
could I presume? could you presume? could she presume? could we presume? could you presume? could they presume?	could I be presuming? could you be presuming? could she be presuming? could we be presuming? could you be presuming? could they be presuming?
Perfect	V-ing perfect
could I have presumed? could you have presumed? could she have presumed? could we have presumed? could you have presumed? could they have presumed?	could I have been presuming? could you have been presuming? could she have been presuming? could we have been presuming? could you have been presuming? could they have been presuming?

Interro-negative form

Simple form	V-ing form
could I not presume? could you not presume? could she not presume? could we not presume? could you not presume? could they not presume?	could I not be presuming? could you not be presuming? could she not be presuming? could we not be presuming? could you not be presuming? could they not be presuming?
Perfect	V-ing perfect
could I not have presumed? could you not have presumed? could she not have presumed? could we not have presumed? could you not have presumed? could they not have presumed?	could I not have been presuming? could you not have been presuming? could she not have been presuming? could we not have been presuming? could you not have been presuming? could they not have been presuming?