syuumatu ha tomodati to kouen de hanami wo simasita.

A natural reading is:

しゅうまつ は ともだち と こうえん で はなみ を しました。

Word readings:

• 週末 = しゅうまつ = weekend
• 友達 = ともだち = friend(s)
• 公園 = こうえん = park
• 花見 = はなみ = flower viewing / cherry-blossom viewing
• しました = しました = did

は marks the topic of the sentence.

So 週末は means something like:

• as for the weekend
• on the weekend

It sets the time frame or topic that the rest of the sentence talks about.

In English, we might simply say On the weekend, I..., but in Japanese, は is often used to introduce that topic.

Good question. Time words in Japanese sometimes take に, and sometimes they do not.

週末 is a relatively general time expression, so it often appears without に:

• 週末は = as for the weekend / on the weekend

You could sometimes hear 週末に, especially if the speaker wants to mark the time more explicitly, but 週末は is very natural here because the sentence is presenting the weekend as the topic.

A rough comparison:

• 週末は = As for the weekend...
• 週末に = At/on the weekend...

Here, と means with.

So:

• 友達と = with a friend / with friends

This と is used when you do something together with someone.

Examples:

• 母と話しました。 = I talked with my mother.
• 友達と行きました。 = I went with my friend.

It can mean either friend or friends. Japanese nouns usually do not change form for singular and plural the way English nouns do.

So 友達と could mean:

• with a friend
• with friends

The exact number depends on context.

If the speaker wanted to be more explicit, they could say:

• 一人の友達と = with one friend
• 友達たちと = with friends

But in normal Japanese, leaving it as 友達 is very common.

Because で marks the place where an action happens.

Here, the action is 花見をしました = did flower viewing, so the place where that action happened is marked with で:

• 公園で = at/in the park

Compare:

• 公園で遊びました。 = I played at the park.
• 公園に行きました。 = I went to the park.

So:

• で = where the action takes place
• に = destination / point in time / location of existence in some cases

花見 literally means flower viewing, but in Japanese culture it usually refers specifically to viewing cherry blossoms.

So 花見をしました means:

• went cherry-blossom viewing
• had a hanami picnic
• enjoyed the blossoms

It often implies a seasonal activity in spring, sometimes with food, drinks, and friends under the cherry trees.

を marks the direct object of the verb.

The verb phrase here is:

• 花見をしました = did hanami / went flower viewing

Even though English says go flower viewing or see blossoms, Japanese uses する with many nouns:

• 勉強をする = to study
• 運動をする = to exercise
• 花見をする = to do hanami

So を shows that 花見 is the thing being done.

しました is the polite past form of する.

• する = do
• した = did (plain form)
• しました = did (polite form)

So the sentence is in polite style, which is very common in textbooks and everyday respectful speech.

Compare:

• 週末は友達と公園で花見をしました。 = polite
• 週末は友達と公園で花見をした。 = plain

Japanese often leaves out the subject when it is clear from context.

In English, you usually need to say:

• I went
• We did
• She did

But in Japanese, if the listener already understands who is being talked about, the subject is often omitted.

So this sentence does not explicitly say I, but depending on context it is often understood as:

• I did hanami with my friend(s) at the park on the weekend.

This is one of the most common differences between English and Japanese.

Yes, Japanese word order is more flexible than English, as long as the particles stay attached to the right words.

For example, these are all possible:

• 週末は友達と公園で花見をしました。
• 友達と週末は公園で花見をしました。
• 公園で週末は友達と花見をしました。

However, some orders sound more natural than others depending on what you want to emphasize.

A very common neutral order is:

• time + companion + place + object + verb

That is exactly what this sentence uses.

No, standard Japanese normally does not use spaces like this.

It would usually be written as:

週末は友達と公園で花見をしました。

The spaces are often added in teaching materials to make the grammar easier to see:

• 週末 は
• 友達 と
• 公園 で
• 花見 を
• しました

So the spaced version is helpful for learners, but it is not how Japanese is normally written in real life.

Yes, it is natural and grammatically correct.

It sounds like a simple, clear statement in polite style:

• On the weekend, I did hanami with friends at the park.

A native speaker might choose slightly different wording depending on nuance, such as:

• 週末は友達と公園でお花見をしました。

Here お花見 is a more common everyday way to say hanami, with お added for a softer, more natural feel. But 花見をしました is still perfectly understandable and correct.