watashi wa gakusei de wa arimasen.

I am not a student.

Breakdown of watashi wa gakusei de wa arimasen.

• は: topic particle
• 私わたし: I
• 学がく生せい: student
• で は ありません: to not be

Questions & Answers about watashi wa gakusei de wa arimasen.

Why are there two は in 私　は　学生　で　は　ありません。? Are they the same thing?

Both are written は and both are pronounced wa, but they play slightly different roles.

• The first は (after 私) is the topic particle. It marks 私 (I/me) as the topic of the sentence: “As for me…”
• The second は (in では) is the same particle は, but here it attaches to で to form the pattern では that’s used in the negative form of です.

So grammatically they’re the same particle は, but:

• First は: marks the sentence topic.
• Second は: works with で inside the negative expression ではありません (“is not”).

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What exactly does は after 私 do? Why not just say 私学生ではありません?