Filipino pronouns are rendered in the plural form to capture the tone of respect in Tagalog formal documents. Together with this, Tagalog native speakers use "po" and "opo" as they do when addressing the elderly and people in authority.
Where the cultural nuance of respect needs to be shown, use the plural forms of the pronouns. See the sentence below:
The use of "po" (polite indicator) gives this sentence unity, unlike in the sentence below:
The second sentence uses the singular form of the pronoun for "you" (iyo) which does not reflect the polite nuance of the sentence and makes the sentence imbalanced. [Please note that we're using the word "polite" here as a synonym for "respectful".] The regular singular pronoun for "you" (iyo) in the above sentence is correct if the Tagalog sentence did not use "po":
Other Filipino pronouns used: Kayo/ ninyo/ inyo (second person, plural) are used even if only one person is addressed to capture the polite tone of the language:
More pronouns: sila/kanila/nila (third person,plural).
The use of the just-mentioned third person, plural makes the communication more detached but still respectful.
Aim for consistency in tone to sound more natural and culture-friendly. An accurate translation is possible with the use of the correct