getsuyou no asa wa densha ga tokuni komimasu.

topic particle

Breakdown of getsuyou no asa wa densha ga tokuni komimasu.

• が: subject particle
• の: possessive case particle
• 朝あさ: morning

Questions & Answers about getsuyou no asa wa densha ga tokuni komimasu.

Why is it 月曜の朝 instead of 月曜に朝?

Because 月曜の朝 means Monday morning as one noun phrase.

• 月曜 = Monday
• 朝 = morning
• の links them, like Monday's morning or more naturally Monday morning

Using に would not work here because に marks a specific time when something happens, while の is connecting two nouns.

So:

• 月曜の朝 = Monday morning
• 月曜に = on Monday

If you wanted, you could also say something like:

• 月曜の朝に電車は特に混みます

  But in the given sentence, 月曜の朝 is being treated as the topic, so の is the natural choice.

What exactly does の do in 月曜の朝?

Here, の connects two nouns.

It shows that 朝 is the morning belonging to or associated with 月曜. In English, we usually translate this kind of の very naturally:

• 日本の車 = Japanese cars / cars of Japan
• 春の雨 = spring rain
• 月曜の朝 = Monday morning

So の is doing a basic noun-linking job.

Why is there a は after 朝?