added to consonant-final stems) and -скер. The meaning of the form in -и is, roughly, 'the one of them that is X', while the form in -скер may be rendered as '(while) being X'. For example, пӳлӗм-р(е)-и-сем 'those of them who are in the room'. The same suffixes may form the equivalent of dependent clauses: ачисем килте-скер-ӗн мӗн хуйхӑрмалли пур унӑн? 'If his children (are) at home, what does he have to be sad about?', йӗркеллӗ çынн-и курӑнать 'You (can) see that he is a decent person', эсӗ килт(e)-и савӑнтарать (lit. 'That you are at home, pleases one'). Pronouns The personal pronouns exhibit partly suppletive allomorphy between the nominative and oblique stems; case endings are added to the latter: Demonstratives are ку 'this', çак 'this' (only for a known object), çав 'that' (for a somewhat remote object), леш 'that' (for a remote object), хай 'that' (the above-mentioned). There is a separate reflexive originally consisting of the stem in х- and personal possessive suffixes: Interrogatives are кам 'who', мӗн 'what', хаш/хӑшӗ 'which'. Negative pronouns are formed by adding the prefix ни- to the interrogatives: никам, ним(ӗн), etc. Indefinite pronouns use the prefix та-: такам etc. Totality is expressed by пур 'all', пӗтӗм 'whole', харпӑр 'every'. Among the pronominal adverbs that are not productively formed from the demonstratives, notable ones are the interrogatives хăçан 'when' and ăçта 'where'. Verbs Chuvash verbs exhibit person and can be made negative or impotential; they can also be made potential. Finally, Chuvash verbs exhibit various distinctions of tense, mood and aspect: a verb can be progressive, necessitative, aorist, future, inferential, present, past, conditional, imperative or optative. The sequence of verbal suffixes is as follows: voice - iterativity - potentiality - negation - tense/gerund/participle - personal suffix. Finite verb forms The personal endings of the verb are mostly as follows (abstracting from vowel harmony): The 1st person allomorph containing -п- is found in the present and future tenses, the one containing -м- is found in other forms. The 3rd singular is absent in the future and in the present tenses, but causes palatalisation of the preceding consonant in the latter. The vowel-final allomorph of the 3rd plural -ҫӗ is used in the present. The imperative has somewhat more deviant endings in some of its forms: To these imperative verb forms, one may add particles expressing insistence (-сам) or, conversely, softness (-ччӗ) and politeness (-ах). The main tense