låta bli

låta bli (present låter bli, preterite lät bli, supine låtit bli, imperative låt bli)

1. avoid, restrain oneself from, keep from (usually with respect to touching, meddling with, or generally doing)

   Låt bli saxen! Den är ingen leksak.

   Leave the scissors alone! They are not a toy.

Always refers to an action which should be avoided, though the action may be implicitly understood. For example in the example above, the action referred to is röra (“touch”). If one wants to specify the action to be avoided, it is to follow in the full infinitive, as in Låt bli att röra saxen!.