Following the
typology of
Alexandra Aikhenvald, there are two broad types of evidential marking: • indirectivity marking ("type I") • evidential marking ("type II") The first type (
indirectivity) indicates whether evidence exists for a given statement, but does not specify what kind of evidence. The second type (
evidentiality proper) specifies the kind of evidence (such as whether the evidence is visual, reported, or inferred).
Indirectivity (type I) Indirectivity (also known as
inferentiality) systems are common in
Uralic and
Turkic languages. These languages indicate whether evidence exists for a given source of information; thus, they contrast
direct information (reported directly) and
indirect information (reported indirectly, focusing on its reception by the speaker/recipient). Unlike the other
evidential "type II" systems, an indirectivity marking does not indicate information about the source of knowledge: it is irrelevant whether the information results from hearsay, inference, or perception; however, some Turkic languages distinguish between
reported indirect and
non-reported indirect, see Johanson 2003, 2000 for further elaboration. This can be seen in the following
Turkish verbs: In the word , the
unmarked suffix indicates
past tense. In the second word , the suffix also indicates past tense but
indirectly. It may be translated into English with the added phrases 'obviously', 'apparently' or 'as far as I understand'. The direct past tense marker is unmarked (or neutral) in the sense that whether or not evidence exists supporting the statement is not specified.
Evidentiality (type II) The other broad type of evidentiality systems ("type II") specifies the nature of the evidence supporting a statement. These kinds of evidence can be divided into such categories as: :* Sensory :** Visual :** Non-visual :* Inferential :* Assumed :* Reportative :** Hearsay :** Quotative
Sensory evidentials can often be divided into different types. Some languages mark
visual evidence differently from
nonvisual evidence that is heard, smelled, or felt. The
Kashaya language has a separate
auditory evidential. An
inferential evidential indicates information was not personally experienced but was inferred from indirect evidence. Some languages have different types of inferential evidentials. Some of the inferentials found indicate: :# Information inferred by direct physical evidence :# Information inferred by general knowledge :# Information inferred/assumed because of speaker's experience with similar situations :# Past deferred realization In many cases, different inferential evidentials also indicate epistemic modality, such as uncertainty or probability (see
epistemic modality below). For example, one evidential may indicate that the information is inferred but of uncertain validity, while another indicates that the information is inferred but unlikely to be true.
Reportative evidentials indicate that the information was reported to the speaker by another person. A few languages distinguish between
hearsay evidentials and
quotative evidentials. Hearsay indicates reported information that may or may not be accurate. A quotative indicates the information is accurate and not open to interpretation, i.e., is a direct quotation. An example of a reportative from
Shipibo ():
Typology of evidentiality systems The following is a brief survey of evidential systems found in the languages of the world as identified in Aikhenvald (2004). Some languages only have two evidential markers while others may have six or more. The system types are organized by the number of evidentials found in the language. For example, a two-term system (
A) will have two different evidential markers; a three-term system (
B) will have three different evidentials. The systems are further divided by the type of evidentiality that is indicated (e.g.
A1,
A2,
A3, etc.). Languages that exemplify each type are listed in parentheses. The most common system found is the A3 type. Two-term systems: • A1. witness, nonwitness (e.g.
Jarawara,
Yukaghir languages,
Mỹky,
Godoberi,
Kalasha-mun,
Khowar,
Yanam) • A2. nonfirsthand, everything else (e.g.
Abkhaz,
Mansi,
Khanty,
Nenets,
Enets,
Selkup,
Northeast Caucasian languages) • A3. reported, everything else (e.g.
Turkic languages,
Tamil,
Enga,
Tauya,
Lezgian,
Kham,
Estonian,
Livonian,
Tibeto-Burman languages, several
South American languages) Three-term systems: • B1. visual sensory, inferential, reportative (e.g.
Aymara,
Shastan languages,
Qiang languages,
Maidu, most
Quechuan languages, Northern
Embera languages) • B2. visual sensory, nonvisual sensory, inferential (e.g.
Washo) • B3. nonvisual sensory, inferential, reportative (e.g.
Retuarã,
Northern Pomo) • B4. witness (direct), nonwitness (indirect), inferential, reportative (e.g.
Tsezic and
Dagestanian languages) Four-term systems: • C1. visual sensory, nonvisual sensory, inferential, reportative (e.g.
Tariana,
Xamatauteri,
Eastern Pomo, East
Tucanoan languages) • C2. visual sensory, inferential #1, inferential #2, reportative (e.g.
Tsafiki,
Pawnee,
Ancash Quechua) • C3. nonvisual sensory, inferential #1, inferential #2, reportative (e.g.
Wintu) • C4. visual sensory, inferential, reportative #1, reportative #2 (e.g.
Southeastern Tepehuan) • C5. witness (non-subjective, non-renarrative), inferential (subjective, non-renarrative), renarrative (non-subjective, renarrative), dubitative (subjective, renarrative) (e.g.
Bulgarian) Five-plus term systems: • visual sensory, nonvisual sensory, inferential, reportative, assumed (e.g.
Tuyuca,
Tucano) • witness, inferential, reportative, assumed, "internal support" (e.g.
Nambikwaran languages) • visual sensory, nonvisual sensory, inferential, reported, heard from known source, direct participation (e.g.
Fasu) • nonvisual sensory, inferential #1, inferential #2, inferential #3, reportative (e.g.
Western Apache) • inferential, anticipation, performative, deduction, induction, hearsay, direct observation, opinion, assumed, "to know by culture", "to know by internal" (
Lojban) ==Evidentiality marking and other categories==