The Spanish language is much like a song made of five tones. The vowels a, o, u are strong while e, i are soft. By contrast English has 12 different sounds. The letter C in Spanish shows these sounds. Ca, Co & Cu sound like K. Ce & Ci sound like S. Examples: Casa, Cosas, Cuatro, Centro, Cine. By using the letter L in combination with the vowels, you will learn the correct pronunciation of the vowels in Spanish. la – le – li – lo – lu, or al- el – il – ol – ul More examples: ma-me-mi-mo-mu / sa-se-si-so-su / ta-te-ti-to-tu To correctly pronounce the vowels in Spanish, open your mouth wide to pronounce the a sound and gradually close it as you pronounce e, then smile to pronounce i, then close your mouth a bit more to pronounce o and u.