it serves a a useful purpose vs there is a need to do so

The two phrases are not directly comparable as they convey different meanings. The first phrase talks about something serving a useful purpose, while the second phrase discusses the existence of a need to do something. They are used in different contexts and cannot be interchanged.

Last updated: March 21, 2024 • 1025 views

it serves a a useful purpose

This phrase is incorrect due to the repeated 'a'. The correct form should be 'it serves a useful purpose'.

The correct phrase 'it serves a useful purpose' is used to describe something that has a beneficial or practical function.

Alternatives:

it serves a useful purpose

there is a need to do so

This phrase is correct and commonly used in English to express the existence of a requirement or necessity to do something.

The phrase 'there is a need to do so' is used to indicate that a particular action is necessary or required.

Show examples from the web [+]

The second action happens when the first one does. Therefore, the second verb should be present as well. Change tense only when there is a need to do so.
After the final version of a DBMS release is certified, Esri will test DBMS patches only when there is a need to do so. After it is determined that the DBMS patches ...
To any content supply partner, where there is a need to do so, in order to supply you with a product of service you have requested. If we suspect that you or any ...
... themselves. Societies do, however, regulate professionals when there is a need to do so, through training standards, licensing and other requirements.

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it serves a a useful purpose vs there is a need to do so