Questions & Answers about Er is een probleem, want jij hebt je verrekend.
How does adding ver- and making the verb reflexive change the meaning of rekenen here?
The verb rekenen means 'to calculate'. When you add the prefix ver- and use it with a reflexive pronoun like je, it creates zich verrekenen, which specifically means 'to make a mistake in calculation' or 'to miscalculate'. This is a very common pattern in Dutch for expressing that an action was done incorrectly.
Why doesn't the past participle verrekend get a ge- prefix?
In Dutch, verbs that already begin with an inseparable, unstressed prefix like ver-, be-, ont-, or ge- never take an extra ge- in their past participle form. Since the infinitive is verrekenen, the past participle is simply verrekend.
Since want translates to 'because', why didn't it push the verbs to the end of the sentence?
The word want is a coordinating conjunction, meaning it connects two main clauses that both keep standard word order. If you had used the other word for 'because', omdat, it would create a subclause where the verbs move to the end: omdat jij je hebt verrekend.