The contract is in Dutch. We do not provide an English contract because of legal reasons and the Dutch law. We understand that not everything might be clear or easy to understand as a non-Dutch speaking person.
You can always contact us if you have any questions regarding the contract, and we can answer all the questions you might have about the contract and the appendixes. We can even schedule a call to answer your specific questions regarding the tenancy agreement. Also translating the contract through Google translate might help quite a lot, and you may ask anybody you know to help you translating or helping you understand its content.