watasitati ha arayuru zyoukyou wo kentousita.

A common reading is:

私たち は あらゆる 状況 を 検討した。
わたしたち は あらゆる じょうきょう を けんとうした。

Romanized: Watashitachi wa arayuru jōkyō o kentō shita.

Notes:

• を is pronounced お in modern Japanese.
• 私たち can also sometimes be read わたくしたち in more formal contexts, but わたしたち is the normal reading here.

は marks the topic of the sentence.

So 私たち は means something like as for us or we as the topic.

Structure:

• 私たち は = as for us / we
• あらゆる 状況 を = every situation / all situations
• 検討した = examined / considered

Even though English just says we, Japanese often uses は to show what the sentence is about rather than marking the grammatical subject in exactly the same way English does.

を marks the direct object of the verb.

Here, the thing being considered/examined is あらゆる状況.

So:

• 状況を検討した = considered the situations

This is similar to how English uses word order:

• We considered the situations.

In Japanese, particles like を show the role of the noun more clearly than word order does.

Because あらゆる directly modifies a noun, like an adjective or determiner.

So:

• あらゆる 状況 = every possible situation / all kinds of situations

You do not say あらゆるの状況.

This is similar to English:

• every situation not
• every's situation

So あらゆる is one of those words that attaches to the following noun directly.

They are similar, but not always identical.

• あらゆる has a nuance like every possible, all conceivable, or all kinds of
• すべての is more straightforwardly all or every

So あらゆる状況 sounds a bit more like:

• every possible situation
• all kinds of circumstances

It can feel slightly more formal or emphatic than すべての状況.

検討した means examined, considered carefully, or studied/evaluated.

It sounds more formal and deliberate than 考えた.

Compare:

• 考えた = thought about
• 検討した = considered carefully, examined, reviewed

So this sentence gives a more serious, analytical impression. It sounds like the speaker did a proper review of the situations, not just casual thinking.

検討した is the plain past form of 検討する.

Breakdown:

• 検討 = examination / consideration
• する = to do
• 検討する = to examine / to consider
• 検討した = examined / considered

This is a very common pattern in Japanese:

• noun + する
• past tense: noun + した

Examples:

• 勉強する → 勉強した
• 確認する → 確認した
• 検討する → 検討した

Yes, very often.

Japanese frequently omits subjects and topics when they are clear from context. So in a natural conversation or written passage, you might simply say:

あらゆる状況を検討した。

That could still mean we considered every situation, depending on context.

Japanese often leaves out information that English usually has to say explicitly.

-たち is a suffix that makes 私 into a plural group: we/us.

• 私 = I
• 私たち = we

But Japanese does not always need an explicit word for we, and plural marking is less obligatory than in English.

Also, there are other ways to say we, depending on nuance:

• 私たち = neutral/common
• 僕たち = more casual, often used by men or boys
• 我々 = formal/stiff, sometimes used in speeches or writing

So 私たち is a normal, neutral choice here.

It is plain style, not polite style, because it ends in 検討した rather than 検討しました.

But the vocabulary itself is somewhat formal because of words like:

• あらゆる
• 状況
• 検討する

So the overall feeling is:

• grammatically plain
• lexically fairly formal or serious

A polite version would be:

私たちはあらゆる状況を検討しました。

No. Normal Japanese is usually written without spaces.

So the standard writing would be:

私たちはあらゆる状況を検討した。

Spaces are often added in learning materials to help beginners see the parts of the sentence more clearly:

• 私たち
• は
• あらゆる
• 状況
• を
• 検討した

They are a teaching aid, not standard Japanese punctuation.