to occur, to come up, to present itself (an issue)
The reflexive form is part of the word: zich voordoen.
On the card “to occur”, ripiti also accepts plaatsvinden. Not the other way round: for plaatsvinden, zich voordoen is not accepted.
Remember zich voordoen for good. ripiti brings the word back just before you forget it, with these sentences. Free, no account needed, works offline.
practise zich voordoen in ripiti