What are the grounds of losing Philippine citizenship?

DEADMAN 1. Denaturalization/Cancellation of Certificate of Naturalization 2. Expatriation/Express Renunciation of Citizenship 3. Accepting commission in the Armed forces of a foreign country (unless 1. the Phils has a defensive/offensive pact alliance with such country or 2. the said county maintains armed forces in the Phil territory with its consent) 4. Declared by final judgement a Deserter of the armed forces of the Philippines in times of war 5. Marriage of filipino woman to a foreigner if by virtue of the laws in force in her husband's country, she acquires his nationality 6. Allegiance to foreign country upon attaining 21 years of age 7. Naturalization in a foreign country