N2 · Structured courses

Mono Dakara: Because (Explanatory)

Softer explanatory "because"—used for justification. This lesson combines form, context, examples, common mistakes, and practice so you can use the pattern in real communication.

12 minNihongo Hub Editorial TeamPublished 2026-06-06Updated 2026-06-06

Learning objectives

  • Lesson goals: Softer explanatory "because"—used for justification.
  • Form and connection: [Plain form] ものだから
  • Nuance in real use: ものだから lowers your posture when explaining—not making excuses, but honestly stating the cause.

Form and connection

[Plain form] ものだから

Core Explanation

Softer explanatory "because"—used for justification.

Cultural Note

ものだから lowers your posture when explaining—not making excuses, but honestly stating the cause.

Practical examples

I'm a beginner, so I can't do it well.
Sorry I can't explain well because I'm not good at English.

Common pitfalls

Build the base form before adding the pattern

Complete the required conjugation first. Do not keep polite and plain endings at the same time.

Match politeness to the situation

The examples are reliable starting points; relationships and context can still change the most natural wording.

Practice and answers

1. Write the connection formula for this lesson.
Show answer[Plain form] ものだから
2. Explain the meaning of the first example.
Show answerI'm a beginner, so I can't do it well.
3. Rewrite the final example using this lesson pattern.
Show answer英語えいごが苦手にがてなものですから、説明せつめいがうまくできなくてすみません。 ([Plain form] ものだから)

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