Trennbare Verben

Can anybody tell me what is the Trennbare Verben? and how to use it?


  "Trennbare Verben" are verbs with a prefix that must be separated from the verb when the verb is conjugated.
   For example, aufstehen (to get up): ich stehe um 8 Uhr auf= I get up at eight o´clock

   Some prefixes never separate from the verb, and these verbs are called "Untrennbare Verben"
       For example, verstehen (to understand): ich verstehe nicht= I don´t understand.

    You must memorize which prefix must be separated and which must not. If the verb is a Trennbare Verben the prefix goes to the end of the phrase when the verb is conjugated, if the verb is an Untrennbare Verben the verbal prefix remain attached to the verb.