An example of a suffixed auxiliary word can be seen in the farewell, 'I will see you.' Here, indicates future tense, -rna indicates first-person singular subject 'I', -ngku indicates second-person singular object 'you' and is the nonpast form of the class 3 verb 'see'. In the past tense, the auxiliary word often drops out completely. In that case, the agreement suffixes attach instead to the first or second word of the clause, as in 'I saw you'. The junction at which the agreement suffixes are attached can trigger progressive vowel harmony. Thus, '(S)he will see you' shows the vowel of the suffix -ngku (second-person singular object) assimilating to the final vowel of . Avoidance register In Warlpiri culture, it is considered impolite or shameful for certain family relations to converse. (For example, a woman should not converse with her son-in-law.) If such conversation is necessary, speakers use a special style of the language, the avoidance register. The avoidance register has the same grammar as ordinary Warlpiri but a drastically reduced lexicon. Most content words are replaced by a generic synonym or a word unique to the avoidance register. Warlpiri Sign Language Warlpiri Sign Language exists as well as the spoken language. References Sources Nash, David (1980). Topics in Warlpiri Grammar, PhD thesis, MIT. Laughren, Hoogenraad, Hale, Granites (1996). A Learner's Guide to Warlpiri: Tape course for beginners, IAD Press, Alice Springs. Further reading Warlpiri DoReCo corpus compiled by Carmel O'Shannessy. Audio recordings of narrative texts, with transcriptions time-aligned at the phone level and translations. Ngarrkic languages Vowel-harmony languages