Question

Я мы она кто себя некто кто нибудь ничто ни с кем в роле дополнения (некоторые не могут быть дополнения)

Answer 1

Я. мы, она, кто, некто, кто-нибудь, ничто - не могут быть дополнениями. Это именительный падеж. Если поставим в другой, то изменится форма. (например: я - кого? меня, кто-нибудь - кого? кого-нибудь, некто - имеет форму только им.падежа)
Я увидел себя в зеркале. (себя - вин.падеж, дополнение)
Я ни с кем не хочу общаться. (ни с кем - творит.падеж, дополнение)

Answer 2

Pronouns in Russian

In Russian, pronouns are used to refer to people, objects, and concepts. They play different roles in a sentence, including subject, object, and complement. Let's explore the various pronouns you mentioned and their roles:

Я (ya) - This pronoun means "I" in English and is used as the subject of a sentence. It refers to the person speaking.

Мы (my) - This pronoun means "we" in English and is used as the subject of a sentence. It refers to a group of people including the speaker.

Она (ona) - This pronoun means "she" in English and is used as the subject of a sentence. It refers to a female person or object.

Кто (kto) - This pronoun means "who" in English and is used to ask questions about a person or object.

Себя (sebya) - This pronoun means "oneself" in English and is used reflexively to refer back to the subject of the sentence. It is used when the subject of the sentence is also the object.

Некто (nekto) - This pronoun means "someone" or "somebody" in English and is used to refer to an unspecified person.

Кто-нибудь (kto-nibud') - This pronoun means "anyone" or "anybody" in English and is used to refer to an unspecified person.

Ничто (nichto) - This pronoun means "nothing" in English and is used to refer to the absence of something.

Ни с кем (ni s kem) - This phrase means "with no one" or "with nobody" in English and is used to indicate that there is no one to do something with.

В роле дополнения (v role dopolneniya) - This phrase means "in the role of an object" in English and is used to describe the function of a pronoun as an object in a sentence.

Please let me know if you have any further questions!