는데 is one of the most common and versatile grammar forms to know. However it can be difficult for Korean learners to interpret because, for the most part, only its most basic usage (as a clause connector) is explained. How do you interpret sentences that end in 는데?

First we need to understand the basic function of 는데 and see why speakers use it. Then we see how this grammar form is closely linked to speaker interactions and rather than “having a particular meaning”, has “a particular purpose”.