What are the rules for using possessive determiners in grammar syntax?

The rules for using possessive determiners in grammar syntax are as follows:

1. Possessive determiners are used to show ownership or possession of a noun. They indicate that something belongs to someone or something else.

2. Possessive determiners agree in number and gender with the noun they modify. For example, "my" is used with singular nouns, while "our" is used with plural nouns.

3. The most common possessive determiners in English are "my," "your," "his," "her," "its," "our," and "their." These determiners are used to indicate possession by the speaker (first person), the listener (second person), or someone/something else (third person).

4. Possessive determiners are placed before the noun they modify. For example, "my car," "his book," "our house."

5. Possessive determiners are not used with articles (a, an, the). For example, we say "my car" instead of "a my car."

6. Possessive determiners can also be used without a noun to show possession. For example, "Is this book yours?" or "The red one is mine."

7. Possessive determiners can be used to show relationships other than ownership, such as kinship or association. For example, "my sister," "his friend."

8. Possessive determiners do not change form to indicate plural possession. For example, we say "my books" and "our books" instead of "mys" or "ours."

It is important to note that possessive determiners should not be confused with possessive pronouns, which are used to replace a noun and show ownership without modifying it.