On the other hand, if the parties agree that the obligations arising from a contract must function fully, but that they end whether an uncertain future event occurs or not, they must have accepted a resolved condition (or condition after the fact). The sustainability of the contract depends on whether the event happens or not, as may be the case: „I will buy and give you a car provided that if you do not pass your exams, I will take the car back.“ Another example would be a sales contract in which you sell a car on the condition that if the buyer does not pay the price until a given date, it will be repossessed. The nature of the agreement depends on the content. When the contract is appointed, it is important to ensure that the essential conditions of this agreement are included in the treaty. After the start, clauses should be added indicating the cause of the contract, its purpose and the extent of the parties` obligations, much of which is typically found in the recitals. The world is constantly changing and changing, and with the advent of the Internet, the law is no longer just accessible to the lucky few. Online agreements allow you to manage your own legal affairs without having to consult expensive lawyers whenever you need a legal model. However, it is not for this Court to speculate on the intentions of the parties when they concluded the treaty. This must be derived from their language and it is the duty of the Court to give the language used by the parties, as far as possible, its ordinary grammatical meaning.  The parol evidence is still admissible to show that the written contract is only part of the entire transaction and that a separate oral agreement that was concluded at the same time was not included in the written agreement – provided that the oral agreement dealt with an issue on which the document remains silent and is not inconsistent with the terms of the written contract. Under these conditions, two contracts can be proven, one written and the other oral. It can therefore be shown that legal entities, including corporations, related entities, legal entities and certain voluntary associations, are represented by legitimate individuals.
The state can generally enter into contracts, like any other person, but its ability to engage and exercise its contractual powers may be limited by principles of public law. If Iustus` error approach is applied, where there is an alleged agreement between the parties, the denier assumes the responsibility of proving that his error is both material and appropriate to be exempt from liability under the apparent contract: in the absence of such a choice of the parties, the court adheres to the contract only to one existing right. Traditionally, this is done on the basis of an alleged intention, which is fictitiously served on the parties, but the more modern approach is to objectively determine the just right by referring to the actual links between the agreement and the various relevant legal systems. In other words, the court chooses the legal system „with which the transaction has its closest and most real connection.“ [Citation required] As a general rule, it is the law of the country in which the contract was concluded or signed (lex loci contractus) or, if the benefit is to be tendered in another country, the law of that country (lex loci solution). It was argued that, given modern communication methods and international trade, the weight of the locus celebrate contract decreases in the allocation of existing legislation.