prefix in adjectives
prefix in adverbs
prefix in nouns
prefix in a great number of verbal nouns containing the idea of repetition or duration (sometimes unpleasant) from which the infinitive ending has been dropped
prefix in the perfect participle of verbs (except in separable verbs)
When the verb begins with f or a sibilant (also in esse) the ge– becomes g–.
When the verb begins with h, the ge– +h becomes gh–.
In geh, gewwe, griege, kumme, ware, waere, ge– is omitted in the perfect participle.
Etymology: G ge–