(gāi) — should; ought to

Definition

该 (gāi) is a more formal written equivalent of 应该 'should / ought to', used especially for strong likelihood ('he should be home by now'). Negate with 不该, not 不用.

pronoun
shouldought to

Examples

  • Nǐ gāi xiān wán chéng zuò yè zài kàn diàn shì.
    You should finish your homework first before watching TV.
  • Zhè me wǎn le, tā gāi yǐ jīng dào jiā le.
    It's so late; he should already be home.
  • Wǒ men gāi hù xiāng zūn zhòng.
    We should respect each other.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 該; 该 is its simplified writing.

Meaning part形符xíngfú
Sound part声符shēngfú
hàigāi
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 該 pairs 言 (speech) with 亥 as a sound part; the simplified 该 is a shorthand, so its parts are not the historical components.

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