kyuujitsu ni tomodachi to issho ni ichiba o yukkuri aruku.

On holidays I walk slowly through the market with a friend.

Breakdown of kyuujitsu ni tomodachi to issho ni ichiba o yukkuri aruku.

• を: direct object particle
• 友とも達だち: friend
• と: companion particle
• に: time particle

Questions & Answers about kyuujitsu ni tomodachi to issho ni ichiba o yukkuri aruku.

In 休日に, what function does に serve?

に after 休日 marks a point in time when the action occurs. It translates as “on” in English: “on (the) holiday(s).”

What is the difference between 休日に and 休日は in this sentence?

• 休日に simply indicates the time when you do something (“on holidays, I …”).
• 休日は uses は as a topic marker, implying contrast or general statement (“As for holidays, (I usually) …”). With 休日は, you’d be setting up a broader comment about holidays rather than just stating when you walk.

Why are there both と and に in 友達と一緒に?

This is actually two constructions combined:
1) 友達と – と marks the companion (“with a friend”).
2) 一緒に – に makes 一緒 an adverbial phrase meaning “together.”
Together 友達と一緒に = “together with (my) friend.”

Why is the market marked with を in 市場を歩く? Couldn’t you use で or が?

• を here marks the route or “thing being traversed.” Verbs of motion like 歩く often take を to show “walking through” a place.
• で would mark the location of an action (“at the market”), but 市場を歩く emphasizes moving THROUGH the market.
• が marks the subject, not the direct object or route, so it wouldn’t work here.