You mean, you want to take your 19 days of paid holidays right? Or, you want to use these to work instead? It is slightly vague from the way the question is phrased, BUT assuming you want to take the paid holidays, the answer is yes of course you are allowed to take paid holidays. These are yours to use (by law). This does not mean that a dodgy company, or a company who wants to be hostile towards an employee will not attempt to intimidate your or threaten to withhold those days from you. But if your contract or the company rules clearly state that you are entitled to those days, the company is obligated to let you use them.