shuumatsu ni tomodachi to issho ni hanabi o mi ni ikimasu.

I will go to see fireworks with a friend on the weekend.

Breakdown of shuumatsu ni tomodachi to issho ni hanabi o mi ni ikimasu.

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

Questions & Answers about shuumatsu ni tomodachi to issho ni hanabi o mi ni ikimasu.

What are the readings of the words in this sentence?

A natural reading is:

しゅうまつ に ともだち と いっしょ に はなび を み に いきます。

Word by word:

• 週末 = しゅうまつ = weekend
• 友達 = ともだち = friend / friends
• 一緒 = いっしょ = together
• 花火 = はなび = fireworks
• 見 = the stem of 見る（みる） = to see / watch
• 行きます = いきます = go

So the full sentence is read:

しゅうまつ に ともだち と いっしょ に はなび を み に いきます。

Why are there so many に particles in this sentence?

Each に is doing a different job.

1. 週末に
   Here に marks the time: at/on the weekend.

2. 一緒に
   Here に turns 一緒 into an adverb-like expression meaning together.

3. 見に行きます
   Here に is part of the pattern verb stem + に行く, which means go to do something.

So even though the same particle appears several times, the function changes depending on where it appears.

Why is there a と after 友達?