Some Spanish-iar verbs are pronounced with stress on the “i,” and therefore need an acute accent on that letter in certain conjugations.
Spanish verbs that end in -uar are conjugated with the same endings as regular -ar verbs, but most -uar verbs require accents in certain conjugations.
Accents may look strange to anyone whose native language doesn’t have any, but they are extremely important in Spanish. Leaving off the accent on a word is a spelling mistake, and may cause confusion. There are three different Spanish accents
The Spanish acute accent serves two purposes: it alters word stress or distinguishes between two otherwise identical words.
In Spanish, when the letter G precedes a U plus a hard vowel, the U and the vowel are both pronounced. In order to obtain this W sound in front of a soft vowel, the Ü comes into play.
It’s just as important to include accents when writing in Spanish as it is to spell words correctly. It drives me kind of crazy when people say, sorry, I can’t type accents on my computer / tablet / smartphone. Yes, you can type accents – yes! even on your old computer. Check out these instructions for Windows, Mac, Linux, iPhone, iPad, and Android.
The ~ accent, called a tilde, on the Spanish letter Ñ indicates that the word used to be spelled with two Ns but now the tilde stands in for the second one.
The rules for Spanish word stress are fairly straightforward, but the terminology can be a bit confusing. Spanish words are divided into categories according to which syllable is stressed when speaking – and this is the tricky part – whether or not there is a written accent.