-sınız/-siniz/-sunuz/-sünüz (ismi xəbər)

This suffix acts as the verb 'to be' for the second person plural. It follows the rule of 4-way vowel harmony:

• -sınız / -sız: After a, ı (e.g., hazır → hazırsınız)
• -siniz / -siz: After e, ə, i (e.g., tələbə → tələbəsiniz)
• -sunuz / -suz: After o, u (e.g., dost → dostsunuz)
• -sünüz / -süz: After ö, ü (e.g., güclü → güclüsünüz)

Unlike the first person endings, these do not require a buffer 'y' because they start with a consonant.

Word Stress (Vurğu):
In Azerbaijani, nominal predicate suffixes are unstressed. This means the stress falls on the last syllable of the stem, not the suffix. For example, in tələbəsiniz, the stress is on the third syllable (tələBƏsiniz).

Politeness (T-V Distinction):
Just like in French or German, using the plural form for a single person is the standard way to show respect to elders, teachers, or strangers. Using the singular -san/-sən in these cases can be seen as impolite.

Short vs. Full Forms:
The full forms (e.g., -siniz) are the official grammatical standard in the Republic of Azerbaijan. The shortened forms (e.g., -siz) are common variants in colloquial speech and are the primary standard in South Azerbaijani.

Negation and Questions:
To form a negative sentence, use deyil. The suffix moves from the noun to the negation word: Siz hazır deyilsiniz (You are not ready).

In spoken Azerbaijani, questions are usually formed simply by using a rising intonation: Siz hazırsınız? (Are you ready?). While the question particle -mı/-mi/-mu/-mü is also used in everyday speech. When it is used, the personal suffix precedes the particle: Siz hazırsınızmı?