Hi @Paola_Ochoa
Welcome to the forum 
In order for someone to help you, we need more information then “a pattern that can’t be cut”. You need to post a file (preferably), picture, drawing etc. to give us an idea of what you are trying to achieve here. Is this a 2D, 3D or surface pattern, should it repeat both horisontally and vertically, what is the end goal (production, 3D print, graphics etc.). Take a look at this excellent post about how to best ask for help - help us help you. Although written specifically for Grasshopper, most of the points apply to general asking for help as well
HTH, Jakob