3 j hard h g g, sometimes a h qu k ai / all / ay eye z s z, ce, ci th (in northern Spain only) The five vowels in Spanish are all pure vowels: [a], [e], [i], [o], [u] Be sure that you do not pronounce a diphthong as we do in English (the extra yuh or wuh sound at the end). Stress: Just as in English, Spanish stresses a certain syllable in a word. If a word ends in a consonant, except s or n, the stress is on the last syllable. If a word ends in a vowel, or s or n, the stress is on the second-to-last syllable. For words that do no follow these rules, an accent is written over the vowel so that you will know to stress that syllable, as in el pájaro (bird).