Eens
Eens is a Dutch adverb and sentence particle used to indicate a nonspecific moment in time, with senses that range from “once” to “sometime,” and it can also soften requests or commands. In everyday speech it appears in statements about past or future experiences, as well as in imperatives or suggestions: for example, Ik ben er eens geweest (I have been there once) or Zullen we het eens proberen? (Shall we try it sometime?). The word often adds a casual, tentative, or friendly tone.
Usage and nuances. In references to frequency, eens marks a single occurrence or a light repetition: bijvoorbeeld,
Etymology and distribution. Eens is derived from the indefinite numeral een, meaning “one,” but over time it
Related phrases and notes. Eens appears in many fixed expressions, such as eens kijken (have a look)