Some happy news: This grammar point is pretty simple, so we'll be through it in no time.

JLPT N3: お～です

When you want to be mega-formal and say "(honorable person) is doing X," you can say お X です.

An example:

社長、中でヤンさんがお待ちです。
しゃちょう、　なか　で　ヤンさん　が　おまち　です。
Mr. (Company) President, Yan-san is waiting inside.
Literally: “company president, + inside + で + Yan-san + が + お-waiting + です.”

This sentence is showing respect to Yan-san by using honorific language.

This is essentially the same thing as saying:

社長、中でヤンさんが待っていらっしゃいます。
しゃちょう、　なか　で　ヤンさん　が　まっていらっしゃいます。
Mr. (Company) President, Yan-san is waiting inside.
Literally: “company president, + inside + で + Yan-san + が + is waiting (honorific).”

And that is just a much more formal version of this:

社長、中でヤンさんが待っています。
しゃちょう、　なか　で　ヤンさん　が　まっています。
Mr. (Company) President, Yan-san is waiting inside.
Literally: “company president, + inside + で + Yan-san + が + is waiting.”

Long story short: お～です is an honorific form of the present progressive tense.

Formation

1) Take a verb in its ます-form.

2) Remove ます.

3) Put お in the front and です in the back.

待つ（まつ // to wait）
↓
待ちます（まちます // wait）
↓
お待ちです（おまちです // [honorable person] is waiting）

Another way to phrase that would be:

お ＋ ます-stem ＋ です

お待ちです（おまちです // [honorable person] is waiting）

In this lesson, we're using these verbs:

待つ（まつ // to wait）
困る（こまる // to be troubled; to be worried）
考える（かんがえる // to think about; to consider）
持つ（もつ // to hold; to carry; to possess）

I'll leave the conjugations to you. I think you can handle these ones. I have faith in you!

By the way, be careful to note the difference between 待つ (まつ // to wait) and 持つ (もつ // to hold; to carry; to possess), as the kanji are very similar. I misread these all the time, especially when I'm trying to get through a text very quickly.

お客様、なにかお困りですか。
おきゃくさま、　なにか　おこまり　ですか。
Is something the matter, ma’am [sir]?
Literally: “(honorable) customer, + something + お-troubling + です + か.”

加賀さんはどうお考えですか。
かがさん　は　どう　おかんがえ　ですか。
What do you think, Kaga-san?
Literally: “Kaga-san + は + how / what + お-thinking + です + か.”

身分証明書をお持ちですか。
みぶんしょうめいしょ　を　おもち　ですか。
Do you have a form of identification?
Literally: “form of identification + を + お-holding + です + か.”