watashi wa shiken no mae ni toshokan de shuuchuushite benkyoushimasu.

topic particle

Breakdown of watashi wa shiken no mae ni toshokan de shuuchuushite benkyoushimasu.

• 私わたし: I
• 勉べん強きょうする: to study
• の: possessive case particle

Questions & Answers about watashi wa shiken no mae ni toshokan de shuuchuushite benkyoushimasu.

Why is は (wa) used after 私, and why is it pronounced “wa” instead of “ha”?

The particle は marks the topic of the sentence: what you’re talking about.

• 私 = I / me
• 私 は = As for me / I (topic)

So 私は sets up “I” as the topic, and then the rest of the sentence tells us what “I” do.

Pronunciation:

• When は is used as a particle, it is pronounced wa, not ha.
• When は is part of a normal word (like はな “nose/flower”), it’s pronounced ha.

So in this sentence:

• Written: 私 は
• Read: わたし wa

Do I always need to say 私 in Japanese, or can I leave it out?

You don’t always need to say 私. In fact, Japanese very often drops the subject when it’s obvious from context.

Your sentence:

• 私は試験の前に図書館で集中して勉強します。

Could naturally become:

• 試験の前に図書館で集中して勉強します。
  (I will study intensively at the library before the exam.)

Because it’s usually clear from context who is doing the action.
You’d keep 私は if:

• You’re introducing a new topic: “As for me…”
• You’re contrasting with someone else: “I (at least) will study, even if others don’t.”

What does の do in 試験の前に? Why not just 試験前に?