kyou wa karada ga darui node, muri ni undousurukoto wa nai.

topic particle

Breakdown of kyou wa karada ga darui node, muri ni undousurukoto wa nai.

• 今きょ日う: today
• が: subject particle
• ので: reason particle

Questions & Answers about kyou wa karada ga darui node, muri ni undousurukoto wa nai.

Why are both は and が used in 今日は体がだるいので?

They are marking different things.

• 今日 は = as for today / today

  • は marks the topic.
  • It sets the time frame: speaking of today...

• 体 が だるい = the body feels sluggish / my body feels heavy

  • が marks the thing that has the condition described by だるい.

So the structure is roughly:

• 今日は = today,
• 体がだるい = my body feels sluggish,
• ので = so / because

A natural way to understand it is: As for today, my body feels sluggish, so...

Why is it 体がだるい and not 体はだるい?

体がだるい is the more neutral way to state the condition itself: the body feels sluggish.

With adjectives like だるい, が often marks what has that quality.

• 体がだるい = my body feels sluggish
• 頭が痛い = my head hurts
• 喉が渇いた = I’m thirsty

If you said 体はだるい, it would sound more contrastive, like:

• As for my body, it feels sluggish
  (possibly implying something else does not, or contrasting it with another thing)

So が is the natural choice here.

What exactly does だるい mean?