The Philippine Islands, 1493-1898 — Volume 12 of 55 / 1601-1604 / Explorations by Early Navigators, Descriptions of the Islands and Their Peoples, Their History and Records of the Catholic Missions, as Related in Contemporaneous Books and Manuscripts, Showing the Political, Economic, Commercial and Religious Conditions of Those Islands from Their Earliest Relations with European Nations to the Close of the Nineteenth Century

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The consonants are only twelve, and in writing are used with the vowels in the following form.

The letter alone with no point above or below it, is pronounced with the vowel-sound A:

BA KA DA GA HA LA MA NA PA SA TA YA
Ba ca da ga ha la ma na pa sa ta ya

By placing the point above, each is pronounced with the vowel-sound
E or I:

BI KI DI GI HI LI MI NI PI SI TI YI
Bi qui di gui hi li mi ni pi si ti yi
Be que de gue he le me ne pe se te ye

By placing the point below, they are pronounced with the vowel-sound
O or U:

BO KO DO GO HO LO MO NO PO SO TO YO
Bo co do go ho lo mo no po so to yo
Bu cu du gu hu lu mu nu pu su tu yu

Consequently, to pronounce cama, two letters without points are sufficient: KAMA ca ma.

If a point is placed above the KA we have KIMA or que-ma.

If a point is placed below each character KOMO the word is co-mo.