440 consonant. If a cluster of /ch/ plus consonant occurs, /ch/ reduces to /s/ (see 4-3.22.25.2). 6-3.36.12 Structure and distribution When it occurs with D-2 /iri/ forms, -chi sep- arates the /iri/ plus contrary-to-fact mark from the rest of the inflection. Examples of this have been found in La Paz, Jopoqueri, and Tarata, Peru (near Sitajara). La Paz Jopoqueri 173 /-iriskchi:ta/ /-irijchi:ta/ (also Tarata) 373 (not elicited) /-irijchi:na/ 1-2 /-iriskchisama:na/ /-irijssma:n/ 3+1 (not elicited) /-irijchita:na/ 34 (not elicited) /-irijchista:na/ In Juli, as indicated earlier, all tenses have 3>4 forms frozen to a preceding /-chi-/ or /-schi-/. Those frozen to /-chi-/ are homophonous with the Non- involver 354 forms (except in the case of the Imperative, with which the Non-involver does not occur). 6-3.36.13 Semantics Bertonio (1603b:276) called this suffix a con- ditional or dubitative. He noted that the Aymara tended