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Discover LudwigSuggestions(5)
The phrase "What purpose" is grammatically correct and can be used in written English
It is usually used to ask about the intended reason or use of something. Example: "What purpose does this tool serve?" (asking about the function or use of a specific tool)
Exact(56)
What purpose do they serve?
What purpose does it serve?
What purpose did it serve for her?
What purpose does film have?
What purpose will this serve?
"What purpose would it serve?
What purpose does peer review serve?
What purpose does this relic serve?
What purpose does this news serve?
–What purpose does rating teachers online serve?
"What purpose do GCSEs actually serve?
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com