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- 疑问副词((when?,where?,why?,how? 等)) interrogative adverbs
- 疑问副词 interrogative adverb
- 疑问副词，疑问助词 An interrogative adverb; an interrogative particle.
- 玉山话疑问副词"可"及其相关句式 Interrogative Adverb "Ke" in Yushan Dialect and Its Relative Sentence Structures
- 疑问 interrogative
- 副词 adverb
- when复句 when complex sentences
- 表示时间的连接词(when, while等) temporal conjunctions
- when的十种用法及译法 Ten sorts of Usage and Translation of the word "when"
- 疑问的 interrogatory
- when是一个时间连接词。 When is a temporal conjunction.
- 关系副词 relative adverb
- 有疑问的 problematic
- “when”是一个时间连接词。 " When" is a temporal conjunction.
- 表示时间的连词(如when,while) Temporal conjunctions,eg when,while
- 疑问代词 interrogative pronoun
- 连接副词 conjunctive adverbs
- 在“I will come when I can”中，“when”是从属连词。 When" in "I will come when I can" is a subordinating conjunction.
- 程度副词 degree adverb
- 表示疑问 EH
