你上次禁食是什么时候？

When was the last time you fasted?

Source: Tatoeba

Sentence Composition

=1 你 nǐ you (informal, as opposed to courteous 您 nín)
=1 你 nǐ you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)
2 上次 shàngcì last time
3 禁食 jìnshí
  1. to fast
  2. to abstain from eating
  3. to forbid the eating of (certain foods)
  4. a fast
=4 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=4 是 shì variant of 是 shì
5 什么时候 shénmeshíhou when?; at what time?