How do you accentuate words in spanish?

Accentuation works by following a set of rules which varies according to which syllable is the strong one when you prounounce it. There are three types of classification. The first one is called "Esdrújulas" and these are words in which the stong syllable is the third from the end. The word es-DRÚ-ju-la itself is an example. This class is easy as all you need to know is that every esdrujula is accentuated. "Llanas" are words which accentuate the second last syllable. These are accentuated when they don't end with an -n, -s or a vocal. For example ÁR-bol (=tree) is a llana which is accentuated as it ends with an L. In contrast, the word bo-TE-lla (bottle) does not have an accent as it ends with a vocal. The last category of words are called "agudas". These are words in which the strong syllable is the last one. An easy way to remember is that their rules work opposite to "llanas". These are accentuated when they do end with an -n, -s or a vocal. Examples for these would be; ca-MIÓN, me-LÓN, jer-SEY, pa-PEL. Lastly, another category which is less frequent but also important are "sobreesdrújulas", which literally means above esdrújulas. These are words in which the strong syllable is the fourth from the end, so one syllable before esdrújulas. These are also easy to remember as they are all accentuated. An example would be the verb "CÓ-me-te-lo" which means "eat it".