The indefinite pronoun does not refer to any particular person, thing or place. It is vague and "indefinite."
Indefinite pronouns - Indefinite pronouns can refer to both countable and uncountable nouns. They often take similar forms in terms of: universal (e.g. everyone, everything), assertive existential (e.g. someone, something), elective existential (e.g. anyone, anything) and negative (e.g. no one, nothing).
Indefinite pronouns include:
some i any (somebody, someone, something, somewhere, anybody, anyone, anything, anywhere),
no i every (nobody, no one, nothing, nowhere, everybody, everyone, everything, everywhere),
all, one and pronouns you i they

We grammatically treat indefinite pronouns as
3rd person, singular
Note that double negation does not occur in English:
She doesn’t want anything.
She wants nothing.
-thing – used in relation to things
something | Affirmative and interrogative sentences | Something has to be done. |
anything | Question and negative sentences | Do you want anything? |
nothing | Negative sentences only | I want nothing. |
everything | Affirmative and interrogative sentences | I want everything. |
-one/-body – used in relation to persons
someone somebody | Affirmative and interrogative sentences | Someone has done it. |
anyone anybody | Question and negative sentences | Was anyone here? |
no one nobody | Negative sentences only | Nobody was here. |
everyone everybody | Affirmative and interrogative sentences | Everyone is here. |
-where – used in relation to location
somewhere | Affirmative and interrogative sentences | We want to go somewhere. |
anywhere | Question and negative sentences | I don’t want to go anywhere. |
nowhere | Negative sentences only | I can go nowhere. |
everywhere | Affirmative and interrogative sentences | They were everywhere. |
all | The winner takes all. |
you they one | are used in an impersonal form, i.e. they do not refer to a specific person, place or phenomenon, but express general truths (or opinions) | You can easily learn English with iLINGUA. They say yoga is good. One should keep practising communication. |
Comments