Sakura's Guide to 'は' vs 'が': The Japanese Topic and Subject Markers Demystified

Hi everyone! Sakura here 🌸

For learners of Japanese, particles can be a real headache — and the king of all confusing pairs is は (wa) vs が (ga).

In English we don't have a clean equivalent — both can roughly translate as the subject "the X". So today let's get to the bottom of it.

1. は — the topic marker ("as for ~")

Use は when you want to set the topic of the sentence. Think of it as saying, "speaking of X, ...".

The topic is usually known/old information that both speakers already share.
は is also used for contrast: "X (as opposed to Y) is ..."

📝 ビールは飲みますが、ワインは飲みません。— As for beer, I drink it; as for wine, I don't.

Use が** when you're introducing new information**, or directly answering a question like "who?".

が highlights the subject as the focal answer.
が is also used with stative predicates: ability, existence, preference (好き, できる, ある...).

📝 私わたしがやります。— I'll do it. (Among everyone here, I'm the one.) 📝 日本語にほんごがわかります。— I understand Japanese. (ability) 📝 猫ねこが好きです。— I like cats.

This sentence, "Elephants have long noses," is the textbook example.

Break it down:

So は sets the broader topic, then が introduces the specific subject of the predicate. Think of it as: "As for elephants — (their) noses are long."

⚠️ Saying 象鼻長ががい would awkwardly emphasise the elephant: "The elephant — IT is the one whose nose is long." Unnatural.

日本にほんは物価ぶっかが高たかい。— In Japan, prices are high. 私わたしは頭あたまが良よい。— I'm smart. (lit. As for me, the head is good.)