Southern Quechua

Quechua is an agglutinating language, meaning that words are built up from basic roots followed by several suffixes, each of which carry one meaning. Their large number of suffixes changes both the overall meaning of words and their subtle shades of meaning. All varieties of Quechua are very regular agglutinative languages, as opposed to isolating or fusional ones [Thompson]. 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.

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 and 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.

Adjectives in Quechua are always placed before nouns. They lack gender and number and are not declined to agree with substantives.

• 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".

Noun roots accept suffixes that indicate person (defining of possession, not identity), number, and case. In general, the personal suffix precedes that of number. In the Santiago del Estero variety, however, the order is reversed.[6] From variety to variety, suffixes may change.

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".[7] 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), facing the past (we can see it: it is remembered).

The infinitive forms have the suffix -y (e.g., much'a 'kiss'; much'a-y 'to kiss'). These are the endings for the indicative:

The suffixes shown in the table above usually indicate the subject; the person of the object is also indicated by a suffix (-a- for first person and -su- for second person), which precedes the suffixes in the table. In such cases, the plural suffixes from the table (-chik and -ku) can be used to express the number of the object rather than the subject.

Various suffixes are added to the stem to change the meaning. For example, -chi is a causative suffix and -ku is a reflexive suffix (example: wañuy 'to die'; wañuchiy 'to kill'; wañuchikuy 'to commit suicide'); -naku is used for mutual action (example: marq'ay 'to hug'; marq'anakuy 'to hug each other'), and -chka is a progressive, used for an ongoing action (e.g., mikhuy 'to eat'; mikhuchkay 'to be eating').

Particles are indeclinable: they do not accept suffixes. They are relatively rare, but the most common are arí 'yes' and mana 'no', although mana can take some suffixes, such as -n/-m (manan/manam), -raq (manaraq 'not yet') and -chu (manachu? 'or not?'), to intensify the meaning. Other particles are yaw 'hey, hi', and certain loan words from Spanish, such as piru (from Spanish pero 'but') and sinuqa (from sino 'rather').

The Quechuan languages have three different morphemes that mark evidentiality. Evidentiality refers to a morpheme whose primary purpose is to indicate the source of information.[8] In Quechuan languages, evidentiality is a three-term system: there are three evidential morphemes that mark varying levels of source information. The markers can apply to first, second, and third persons.[9] The chart below depicts an example of these morphemes from Wanka Quechua:[10]

The parentheses around the vowels indicate that the vowel can be dropped in when following an open vowel. For the sake of cohesiveness, the above forms are used to discuss the evidential morphemes. There are dialectal variations to the forms. The variations will be presented in the following descriptions.