Learn Turkish: Şimdi hazır değiliz.

When you make a noun or adjective negative using değil, the personal suffix always attaches to değil, not the main word. So it is hazır değiliz (ready we-are-not) instead of hazırız değil.

Why is the personal suffix -iz here?

Personal suffixes follow vowel harmony based on the word they attach to. Since it attaches to değil, we look at its last vowel, which is i. According to 4-way vowel harmony rules, an i takes the -iz ending for "we". This is great news for learners: "we are not" will always be değiliz, no matter what adjective comes before it.

Where is the word for "we" (biz) in this sentence?

It is built right into the -iz ending on değiliz. In Turkish, because the ending already shows exactly who the subject is, you usually drop the subject pronoun like biz. You would only add biz at the beginning if you wanted to add extra emphasis.

Could I put şimdi at the end of the sentence instead of the beginning?

You might hear time words at the end in casual, spoken Turkish, but standard Turkish word order usually places the time word early in the sentence. Since the subject is dropped here, the time word şimdi (now) naturally takes the first spot before the adjective.