被 introduces a passive construction.

Basic pattern#

Affected subject + 被 + agent + verb phrase

An authored practice example#

门被风吹开了。

The door was blown open by the wind.

This sentence is an original teaching example. It does not describe an interview, a survey result or an observed event.

Scope of this introduction#

Start with the example above and practise changing the nouns. It illustrates one use; it is not an exhaustive account of every function of the highlighted word or particle.

Reference#

Published Chinese grammar specification. The reference identifies the grammar point; the example and English translation here are newly written.