kodutumi wo okuru mae ni, atena wo mou itido kakuninsimasita.

When 前に follows a verb, Japanese normally uses the verb’s dictionary form:

• Vる + 前に = before doing V

So:

• 送る前に = before sending

The past meaning for the whole sentence comes from the main verb 確認しました.
So the sentence means that the checking happened in the past, at a time before the sending.

A helpful comparison:

• 送る前に = before sending
• 送った後で = after sending

So the form before 前に is about the time relationship, not the final tense of the whole sentence.

Here, 前に means before.

In this sentence, it connects an action to another action:

• 小包を送る前に = before sending the package

This is a very common pattern:

• 食べる前に = before eating
• 寝る前に = before sleeping
• 出かける前に = before going out

You can also use 前に after a noun:

• 食事の前に = before the meal
• 出発の前に = before departure

So in your sentence, 前に marks the time when the main action happened.

Because there are two different verbs, and each one has its own direct object.

• 小包を送る
  • 小包 is the thing being sent
• 宛名を確認しました
  • 宛名 is the thing being checked

So:

• first を belongs to 送る
• second を belongs to 確認しました

Even though the sentence is written as one full sentence, the first part is a time clause:

• 小包を送る前に = before sending the package

The main action is:

• 宛名をもう一度確認しました = checked the address/name once more

宛名 is read あてな.

It means the name and address written on a letter, package, or parcel, or more generally the addressee information.

In English, depending on context, it might be translated as:

• the address
• the name and address
• the address label
• the addressee

It is a bit more specific than 住所, which usually means a physical street address.

So here, 宛名を確認しました suggests checking the mailing information written on the parcel.

もう一度 literally means one more time.

In this sentence, it works a lot like again:

• 宛名をもう一度確認しました = checked the address again / checked the address one more time

It usually suggests that the speaker had already checked it before and then checked it once more.

A small nuance:

• もう一度 emphasizes one more repetition
• また can also mean again, but it is broader and does not focus as strongly on the count

So もう一度 is a very natural choice for double-checking something.

Both 一度 and 一回 can mean once, and both can be used in many situations.

However:

• もう一度 is a very common fixed expression
• もう一回 is also common, but often sounds a bit more casual

So:

• もう一度確認しました = natural, neutral, slightly more formal
• もう一回確認しました = also natural, but more conversational

In a sentence like this, especially in writing, もう一度 sounds very natural.

確認する means to check, confirm, or verify.

It usually sounds more deliberate than just casually looking at something. It suggests making sure the information is correct.

So:

• 見る = to look
• 確かめる = to make sure / check
• 確認する = to confirm / verify

In this sentence, 確認しました gives the feeling of a careful check, like making sure the address label was correct before mailing the parcel.

That fits the situation very well.

The subject is omitted because Japanese often leaves out information that is obvious from context.

So the sentence does not explicitly say:

• I
• he
• she
• they

But in many normal contexts, English would naturally translate this as:

• I checked the address once more before sending the package.

Japanese does this all the time. If the subject is clear from the situation, it is usually not repeated.

小包 is read こづつみ.

It means:

• parcel
• package
• small package

This reading may look a little surprising if you try to guess from the kanji one by one. It is a native Japanese reading:

• 小 → こ
• 包み → つつみ

When combined, the つ part becomes voiced:

• こつつみ → こづつみ

That voicing is a common sound change called rendaku.

So the full phrase is:

• 小包を送る = to send a parcel

No, it is not strictly necessary, but it is very natural.

The comma helps separate the time phrase from the main action:

• 小包を送る前に、宛名をもう一度確認しました。

It creates a small pause, similar to English when we write:

• Before sending the package, I checked the address again.

Without the comma, the sentence is still correct:

• 小包を送る前に宛名をもう一度確認しました。

The version with the comma is just easier to read.

No. In this sentence, 前に means before in time, not in front of in space.

前 can mean either:

• before (time)
• in front of (location)

The meaning depends on context.

Examples:

• 寝る前に = before sleeping
• 駅の前に = in front of the station

Since 送る is an action, 送る前に clearly means before sending, not in front of sending.

The given order is very natural, but Japanese word order is somewhat flexible.

The original sentence:

• 小包を送る前に、宛名をもう一度確認しました。

is the most straightforward way to present the timeline:

1. before sending the parcel
2. checked the address again

You could move parts around for emphasis, but the original version is the most natural and easiest for learners to follow.

Japanese often puts time expressions near the beginning, so this sentence follows a very common pattern.