N3 · Structured courses

Te Irai: Since (Continuously)

Learn て以来 for "ever since X happened, Y has continued." 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: Learn て以来 for "ever since X happened, Y has continued."
  • Form and connection: [Verb te-form] 以来いらい
  • Nuance in real use: This intermediate pattern adds sophistication to your Japanese.

Form and connection

[Verb te-form] 以来いらい

Core Explanation

Learn て以来 for "ever since X happened, Y has continued."

Cultural Note

This intermediate pattern adds sophistication to your Japanese.

Practical examples

Ever since I came to Japan, I've loved sushi.
I haven't seen him since graduation.
Ever since I got sick, I've been careful about my health.

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[Verb te-form] 以来いらい
2. Explain the meaning of the first example.
Show answerEver since I came to Japan, I've loved sushi.
3. Rewrite the final example using this lesson pattern.
Show answer病気びょうきになって以来いらい、健康けんこうに気きをつけています。 ([Verb te-form] 以来いらい)

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