Relative pronouns have the singular and plural alike.
Who is either masculine or feminine; which and that are masculine, feminine or neuter; what as a relative pronoun is always neuter.
That and what are not inflected.
Who and which are thus declined:
| Sing. and Plural | Sing. and Plural | |||
|---|---|---|---|---|
| N. | Who | N. | Which | |
| P. | Whose | P. | Whose | |
| O. | Whom | O. | Which | |
Who, which and what when used to ask questions are called Interrogative Pronouns.
Adjective Pronouns partake of the nature of adjectives and pronouns and are subdivided as follows:
Demonstrative Adjective Pronouns which directly point out the person or object. They are this, that with their plurals these, those, and yon, same and selfsame.
Distributive Adjective Pronouns used distributively. They are each, every, either, neither.
Indefinite Adjective Pronouns used more or less indefinitely. They are any, all, few, some, several, one, other, another, none.