In the Circassian language

• postpositions,
• conjunctions and
• participles

belong to the group of auxiliary parts of speech.

Postpositions

In the Circassian language, as well as in other Ibero-Caucasian languages, role of prepositions belongs to postpositions. It is difficult to define the exact count of postpositions in the Circassian language, because even such major parts of speech as nouns (from the point of view of their functionality) sometimes can be included into the group, together with some verb prefixes. For example, in the sentence Тхылъы́р столы́м телъ "The book is lying on the table" the noun has no preposition, but the meaning remains clear because in the verb те-лъ "is lying" the prefix те- expresses something's being on a surface, so this form of the verb literally means "on the surface is lying".

Nouns and adverbs sometimes play role of postpositions. For example, nous that describe different parts of human body (head, nose, side and so on) sometimes function as postpositions. For example: Шъузы́р л1ым ыпэ́ итэ́у к1ощтыгъэ́ "The wife was going in front of the husband" (the preposition "in front of" in the Circassian sentence is expressed by the phrase ыпэ итэу "being in front of his nose").

Nouns and pronouns combine with a postposition in the ergative grammatical case only. For example, the postposition дэжь "near, beside" requires a word in the ergative case:

• чъыгы́-м дэжь "near the tree";
• ныбджэгъу́-м пае "for the friend".

Postpositions can attach possessive prefixes to themselves. For example, in singular:

• сэ с-а-дэ́жь "to me",
• о у-а-дэ́жь "to you",
• ащ ы-дэ́жь "to him";

in plural:

• тэ т-а-дэ́жь "to us",
• шъо шъу-а-дэ́жь "to you",
• ахэмэ́ а-дэ́жь "to them".

The following words are used as postpositions in the Circassian language:

• дэжь "near",
• па́е "for",
• пашъхьэ́ "in front of, before",
• ч1эгъ "under",
• шъхьагъ "above",
• фэдэ́у "like, similar",
• азыфа́гу "among",
• гузэ́гу "among",
• бгъу "side",
• гупэ "face",
• к1ыб "back",
• къогъу "corner",
• к1ы́1у "surface",
• к1оц1ы́ "inside",
• пэ "nose",
• пшъэ "neck",
• ужы́ "trace",
• нэу́ж "track",
• ч1ып1э́ "place" and others.

Conjunctions

Conjunctions in the Circassian language play the same role like in English, they are used to connect together, in different ways, words or parts of a difficult sentence. According to structure of Circassian conjunctions they can be separated into two groups:

• simple and
• complex.

Among simple Circassian conjunctions are:

• ык1и́ "and",
• е "or",
• ау "but" and others.

For example:

Сэ сык1уа́гъ къалэ́м, ау къэзгъэзэжьыгъэ́п "I went to the city, but have not returned".

Among complex Circassian conjunctions are:

• ау щытми́ "however",
• ары шъхьа́й "but",
• ары пак1опы́шъ "not only", "but",
• армырмэ́ "not only, but",
• нахь мыш1эми́ "despite",
• зэ-зэ "here-and-there",
• е-е "either-or",
• сыда́ п1омэ́ "because",
• ащ къыхэк1ык1э́ "due to" and others.

For example: Игъо́м 1офш1энхэ́р гъэцэк1агъэ́ хъугъэ́п, сыда́ п1омэ́ уахътэ́у ти1агъэ́р мак1э́ "The job has not been done before the deadline, because there had not been enough time".

Particles

In the Circassian language participles are different both by their semantics and structure. Semantically they fall into the following groups:

• affirmative,
• negative,
• interrogative,
• intensive,
• indicatory,
• stimulating.

Affirmative

• ары́, ы "yes",
• хъун, хъущт "fine, OK",

for example:

• - Непэ́ тадэ́жь къак1оба́. - Хъун. "- Come to us today. - OK";
• - Къэс1уагъэ́р къыбгуры1уагъа́? - Ары́. "- Have you understood what I have said? -  Yes";

Negative

• хьа́у "no".

For example:

• Хьа́у, хьа́у, зыми́ сэ сыфае́п "No, no, I don't want a thing";

Interrogative

• ш1уа́, ш1э "so", "already".

For example:

• Сыди́гъу ш1уа́ авто́бусыр къызык1ощты́р? "When the bus will come already?";

Intensive

• адэ́ "well",
• к1о "now, well".

For example:

• Адэ́, Пщыма́ф, гущы1э́у птыгъэ́р гъцэ1эжьба́. "Well, Pshimaf, you must keep your word".

Indicatory

• мары́ "this",
• муары́ "that".

For example:

• Мары́ машинэ́у зигу́гъу къыпфэсш1ыгъагъэ́р "This is the car which I have told you about";

Stimulating

• еу, штэ "come on".

For example:

• Еу, псынк1э́у зегъа́хь! "Come on, get out of here quickly".