1) For words ending in n, s or vowels, the stress is usually on the penultimate syllable, and there is no stress symbol.
2) Except for words ending in consonants other than N and S, the stress is on the last syllable, and there is no stress symbol.
3) For words other than the above two items, stress them. When the stress of some words changes, the meaning of words changes, so we should pay special attention to finding the correct stress position, such as mas (but) and más (more), papa (potato) and papá (pope).
4) No matter how many syllables a word has, its stress is generally only one.
5) When o (or) is used with numerals, it must be stressed to distinguish it from 0 (zero, cero), such as 17 ó 18( 17 or 18).
2. In order to distinguish stress better, we need to know the division method of syllables:
1) words are generally divided by vowels, such as pa-la-bras, which is very similar to English.
2) When y is used alone or at the end of a word, if it is used at the end of a word or at the beginning of a syllable, it can be regarded as a vowel and a consonant.
3) The following combinations are inseparable: AI, Au, EI, EU, IA, IE, IO, IU, OI, OU, UA, UE, UI, UO, IAI, IEI, UAI, UEI. If one of them is stressed, it is divided by vowels, such as pa-ís, rí-o, etc.
4)ay, ey, oy, uy can only be distinguished by vowels, but not by consonants, such as ha-ya, muy.
5) Consonant letters appearing in two vowels should be classified as the last syllable, but if they are CH, LL and RR, the two consonants should be classified as the last syllable at the same time. If the other two consonants are together in the middle, they can be separated, that is, one comes before the other, which conforms to the syllable division rule of "two breakups" in English.
6) Preposition prefixes can separate syllables, such as des-gradable and pre-Colombiano；; But when there is a consonant such as S after the prefix, S is connected with the prefix: ABS-tener, CONS-Trucció n.
7) When two C's and N's are together, the treatment method is the same as English, and they must be separated: acceso.