'sich freuen über' vs. 'sich freuen auf'
The words that begin with be- have to always have an object. But why there is none in "Die Gefahr besteht,"?
What is the difference between:
) "Du scheinst kaputt,"; and
) "Du wirkst kaputt,"?
- What is the difference between sich freuen über and sich freuen auf?
As already mentioned both "kaputt" sentences do not sound smooth in this sentence for German ears. Maybe there is not even a grammatical reason.
The rule for transitive be-verbs seems to be more complicated: if a verb exists with and without this prefix the be-form is often transitive and has often an object. Zwingen - bezwingen, antworten - beantworten, bereden - reden
If the form without prefix does not exist, it may have an object but there is no fixed rule: beginnen, befürworten
And there are Verbs with different meaning for transitive and intransitive use:
bestehen without object means to exist: die Gefahr besteht, es bestehen Zweifel
with object it could mean to master or to consist of: die Prüfung bestehen. Teig besteht aus Wasser und Mehl.
But I would learn a language always context driven, i.e. transitive verbs: etwas bereden, etwas begreifen
expressions: bestehen auf - to insist on, bestehen in - to exist in, bestehen aus - to consist of
In many cases context driven learning is far more effective than applying grammar.