は

The particle は (pronounced “wa”) is one of the most fundamental grammar points in Japanese. It’s called the topic particle because it marks the topic of a sentence.

Basic Functions

1. Topic Marker
   • Marks the main topic of a sentence
   • Indicates what the sentence is about
   • Example: 私は学生です (Watashi wa gakusei desu) = “I am a student”
2. Contrast Marker
   • Shows contrast between two or more items
   • Example: 私は行きますが、彼は行きません (Watashi wa ikimasu ga, kare wa ikimasen) = “I will go, but he won’t go”

Examples

• 田中さんは医者です。
  (Tanaka is a doctor.)

• 私は寿司が好きです。
  (I like sushi.)

• 東京は人が多いです。
  (As for Tokyo, there are many people.)

Important Notes

• Unlike が (ga), which marks the grammatical subject, は marks the topic
• The same noun can take different particles depending on its function in the sentence
• は often replaces other particles (を, が) when marking the topic
• When pronouncing は as a particle, always say “wa” (not “ha”)
• The topic marked by は is not necessarily the grammatical subject of the sentence
  • Example: 魚は猫が好きです (Sakana wa neko ga suki desu) = “As for fish, cats like it”
  • Here, “fish” is the topic, but “cats” is the grammatical subject
• The distinction between は and が can be subtle and takes practice.