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HSK 2.0 Level 5+ HSK 3.0 Level 5+ 8 min read

自...以来 and 由...组成

Learn 自...以来 and 由...组成 with practical HSK 5 examples, focus vocabulary, common pitfalls, and targeted cloze practice.

Pattern

time frame and composition frames

Use this HSK 5 pattern to make sentence structure, scope, or emphasis explicit instead of relying on word-for-word English order.

自从毕业以来，他一直很忙。

When to use 自...以来 and 由...组成

Read time frame and composition frames as a sentence tool, not just as vocabulary. First locate the main action or claim, then ask what 以来 adds to it.

开春以来雨水很多。

Since spring began there has been a lot of rain.

入学以来他进步很快。

Since starting school he has improved quickly.

Common traps

  • Do not translate time frame and composition frames mechanically from English; check the Chinese word order first.
  • Keep 以来 close to the part of the sentence it controls.
  • Do not overuse the pattern in every sentence; use it when it adds a clear role.

Targeted drill

Practice this exact pattern before moving on.

自从毕业 ，他一直很忙

Missing grammar piece
Meanings
since