a complete stranger and the speaker has no idea who they are.] Younger Filipinos tend to mix these forms of address, resulting in questions such as Sino ka pô ba? in an attempt to sound polite towards a total stranger. This and other nonstandard variants are very widespread, especially in the Manila dialect of Tagalog and its surrounding suburbs. Other languages Basque Basque has two levels of formality in every dialect, which are hi and zu, but in some areas of Gipuzkoa and Biscay, the respectful form berori is still used by some speakers, just as the familiar xu in some areas of the Eastern Low Navarrese dialect, when addressing children and close friends. Most speakers only use the zu form (zuka level) and that is the usual one used in methods, slogans... although the hi form (hika) is very common in villages. The neutral or formal one is zu, which originally used to be the plural form of the second person. The informal one is hi, whose use is limited to some specific situations: among close friends, to children (children never use it when addressing their parents, neither the spouses among them), when talking to a younger person, to animals (cattle, pets...), in monologues, and when speaking angrily to somebody. Their common plural form is zuek, whenever the speaker is talking to a group of listeners who would all be individually addressed with the form zu, or the form hi, or both (a conversation where some listeners are addressed as zu—i.e., somebody's parents, for instance—and others as hi—the speaker's siblings). Unlike zu, hi sometimes makes a distinction whether the addressed one is a male or a female. For example: duk (thou, male, hast) and dun (thou, female, hast). The use of the hika level requires the allocutive agreement (hitano or zeharkako hika, i.e., indirect hika) in non-subordinate sentences to mark this distinction for the first and third person verbs. Those allocutive forms are found in the indicative and conditional moods, but never in the subjunctive and imperative moods, with the one exception of goazemak (let's go, said to a male) and goazeman (said to a female) in Western dialects, opposed to goazen, the neutral form. For example: du (neutral, s/he has, neutral form), dik (s/he has, male thou) and din (s/he has, female thou), as in aitak ikasi du (polite: Dad has learned it), aitak ikasi dik (informal, said