ferii ga kekkoushita tame, nitteihenkouse zaru o enai.

Because the ferry is cancelled, I have no choice but to change the travel date.

Breakdown of ferii ga kekkoushita tame, nitteihenkouse zaru o enai.

• が: subject particle
• ため: because of
• 〜ざる を 得えない: have no choice but to; be forced to
• フェリー: a ferry

Questions & Answers about ferii ga kekkoushita tame, nitteihenkouse zaru o enai.

What does ため mean here? Does it mean for the purpose of?

Here, ため means because of or due to, not for the purpose of.

In Japanese, ため can have more than one meaning:

• V dictionary form + ために = in order to do
• Clause + ため = because / as a result of

In this sentence, フェリーが欠航したため means because the ferry was canceled.

This use of ため sounds more formal and objective than から or ので. It is common in writing, announcements, reports, and business-style Japanese.

A less formal version would be:

• フェリーが欠航したので、日程を変更しなければならない。

Why is 欠航した in the past tense before ため?

Because the cancellation is treated as an event that already happened, and that event caused the next situation.

So:

• 欠航したため = because it was canceled
• not because it is canceled in a broad timeless sense

Japanese often uses the past form before a cause expression when the cause is a completed event.

So the flow is:

1. The ferry got canceled.
2. As a result, the schedule must be changed.

Why is the particle が used after フェリー instead of は or を?