Yes, sometimes. Of course, not all vowels have accents. Their main purpose is to clarify which syllable is stressed. There is also a special mark (not called an "accent") that goes over the letter "n", making it an "ñ", which has a different sound.
Written Spanish has certain characters that have accent marks over the standard English alphabet. These accent marks are added to reflect more faithfully the actual pronunciation of the words concerned.
(´) above vowels, following certain spelling rules(¨) above "u" to show it must be pronounced as in "vergüenza"(~) above letter "n", pronounced "eñe", to make difference among words, for instance: "cano", distinct to "caño"
It's an accent grave which doesn't really affect the pronounciation like the other accent, aigue.
"Si estoy trabajando" means "If I am working" in English.
You can say gaurdian in Spanish in the following ways: guardian (with an accent over the a), tutor, custido (with an accent over the i), economo (with an accent over the o), guardador, protector, and ayudante.
you put this over the n :~
Tentaculo with and accent mark over the a.
Cafeteria is the exact same in Spanish except with an accent over the "I."
Clever in Spanish is: habil (accent over the 'a') or listo.
The punctuation mark used in Spanish spelling is called "tilde." It is placed over certain letters to indicate stress or to differentiate between words that are spelled the same but have different meanings.
Depending on what kind of person says what, there can be quite a few different kinds of accents. The word "accent" if said by a southern boy, can sound like "axsent", with a good southern drawl. Also practically any foreign word would have an accent if you say it right, like "Auf Wiedersein", or "Oui". Perhaps you mean words with accent marks? I don't know any words in English that have accent marks; there are many words in other languages that have accent marks, such as in Spanish, for example. The name José is one example, it has an accent mark over the e.
diadía (there is an accent over the I)dia