Presume upon

Pro Tip 1/3

Negative Connotation

Using 'presume upon' implies disapproval of someone's behavior, usually selfishness or rudeness.

I cannot believe she would presume upon our goodwill like this.

Pro Tip 2/3

Implies Expectation

'Presume upon' suggests an expectation that others will comply with the presumption.

He just walked in and presumed upon my help without even asking.

Pro Tip 3/3

Not Always Negative

Sometimes 'presume upon' can imply initiative in informal settings; the tone is key.

She presumed upon the team's agreement and led the project to success.