PRESUME

(BE RUDE) [verb] - to do something although you know that you do not have a right to do itI don't wish to presume (= make a suggestion although I have no right to), but don't you think you should apologize to her? [I]He presumes on (= takes unfair advantage of) her good nature by getting her to do all his washing for him. [I]Could I presume on your time for a moment by asking you a few questions? [I]I wouldn't presume to tell you how to do your job, but shouldn't this piece go there? [+ to infinitive]