Their normal sentence order is SOV (subject–object–verb). Notable grammatical features include bipersonal conjugation (verbs agree with both subject and object), evidentiality (indication of the source and veracity of knowledge), a set of topic particles, and suffixes indicating who benefits from an action and the speaker's attitude toward it, but some varieties may lack some of the characteristics. Pronouns In Quechua, there are seven pronouns. First-person plural pronouns (equivalent to "we") may be inclusive or exclusive; which mean, respectively, that the addressee ("you") is or is not part of the "we". Quechua also adds the suffix -kuna to the second and third person singular pronouns qam and pay to create the plural forms, qam-kuna and pay-kuna. In Quechua IIB, or "Kichwa", the exclusive first-person plural pronoun, "ñuqayku", is generally obsolete. Adjectives Adjectives in Quechua are always placed before nouns. They lack gender and number and are not declined to agree with nouns. Numbers Cardinal numbers. ch'usaq (0), huk (1), iskay (2), kimsa (3), tawa (4), pichqa (5), suqta (6), qanchis (7), pusaq (8), isqun (9), chunka (10), chunka hukniyuq (11), chunka iskayniyuq (12), iskay chunka (20), pachak (100), waranqa (1,000), hunu (1,000,000), lluna (1,000,000,000,000). Ordinal numbers. To form ordinal numbers, the word ñiqin is put after the appropriate cardinal number (iskay ñiqin = "second"). The only exception is that, in addition to huk ñiqin ("first"), the phrase ñawpaq is also used in the somewhat more restricted sense of "the initial, primordial, the oldest." Nouns Noun roots accept suffixes that indicate number, case, and the person of a possessor. In general, the possessive suffix precedes that of number. In the Santiago del Estero variety, however, the order is reversed. From variety to variety, suffixes may change. Adverbs Adverbs can be formed by adding -ta or, in some cases, -lla to an adjective: allin – allinta ("good – well"), utqay – utqaylla ("quick – quickly"). They are also formed by adding suffixes to demonstratives: chay ("that") – chaypi ("there"), kay ("this") – kayman ("hither"). There are several original adverbs. For Europeans, it is striking that the adverb qhipa means both "behind" and "future" and ñawpa means "ahead, in front" and "past." Local and temporal concepts of adverbs in Quechua (as well as in Aymara) are associated to each other reversely, compared to European languages. For the speakers of Quechua, we are moving backwards into the future (we cannot see it: it is unknown),