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KhoshtipMan Posted 7 years ago
Grammar

Grammar point

Hi,

Here, in this sentence, what is the function of "does", please?
When we delete the parent widget, not only does the child vanish from memory, it also vanishes from the screen.


I guess it's not for emphasis nor is that auxiliary verb incorrectly used but it's just like 'is' here, in this sentence. Agree?

  

Top answer

When we delete the parent widget, not only does the child vanish from memory , it also vanishes from the screen. The underlined element has subject-auxiliary inversion. This occurs in declarative clauses only when certain types of element are put in front position.

  • When we delete the parent widget, not only does the child vanish from memory , it also vanishes from the screen.
  • The underlined element has subject-auxiliary inversion.
  • This occurs in declarative clauses only when certain types of element are put in front position.
  • Negatives are one very obvious type of element that trigger subject-auxiliary inversion when fronted.
  • It is the presence of fronted "only" that triggers the inversion.
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1 Answers
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When we delete the parent widget, not only does the child vanish from memory, it also vanishes from the screen.


The underlined element has subject-auxiliary inversion. This occurs in declarative clauses only when certain types of element are put in front position. Negatives are one very obvious type of element that trigger subject-auxiliary inversion when fronted.

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