when required or if required ?

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https://www.pristineword.com/comma-if-necessary

https://www.pristineword.com/comma-if-necessary
Commas with ‘If necessary’, ‘If required’, ‘When needed’, etc.
1. ‘If necessary’, ‘If needed’, and ‘If required’ at the Start of a Sentence If necessary means if it is necessary.Similarly, if you say that something will happen if needed or if required, you mean that it will happen if it is needed or if it is required.When starting a sentence with the conjunction if, use a comma to separate the -clause from the rest of the sentence.

https://forum.wordreference.com/threads/if-required-vs-if-it-is-required.2255181

https://forum.wordreference.com/threads/if-required-vs-if-it-is-required.2255181
If required vs if it is required | WordReference Forums
#2 Both sentences are correct, except that: (1) if should not be capitalized; and (2) you left out the word help by mistake in the second sentence. In the first sentence, it is is understood. In both sentences, required is the passive voice of the verb require. Tracer Banned Wadi Jinn American English Sep 28, 2011 #3

https://www.collinsdictionary.com / dictionary / english / if-necessary-when-necessary-where-necessary

https://www.collinsdictionary.com / dictionary / english / if-necessary-when-necessary-where-necessary
Definition of ‘if necessary/when necessary/where necessary’
Il y a 3 joursDefinition of ‘if necessary/when necessary/where necessary’ if necessary/when necessary/where necessary phrase If you say that something will happen if necessary, when necessary, or where necessary, you mean that it will happen if it is necessary, when it is necessary, or where it is necessary.

https://english.stackexchange.com/questions/57278/if-as-when-necessary

https://english.stackexchange.com/questions/57278/if-as-when-necessary
If/as/when necessary – English Language & Usage Stack Exchange
2 One can review use of if necessary, as necessary, and when necessary via examples drawn from links at ngrams. Some sets of examples are given below, with a summary after each set. So check all cylinder fins periodically and clean them if necessary. – Townsend

https://forum.wordreference.com/threads/if-required-or-if-needed.3713004

https://forum.wordreference.com/threads/if-required-or-if-needed.3713004
If required or If needed | WordReference Forums
#1 What is the difference between the below phrases and are they correct? 1. You can call me if needed. Or 2. You can call me if required. And what about if someone say : 1. You can call me if it is needed. And 2. You can call me if it is required. se16teddy Senior Member London but from Yorkshire English – England Jun 19, 2020 #2

https://www.wordhippo.com/what-is/sentences-with-the-word/if_required.html

https://www.wordhippo.com/what-is/sentences-with-the-word/if_required.html
How to use if required in a sentence – WordHippo
How to use if required in a sentence How to use if required in a sentence Looking for sentences with if required ? Here are some examples. Sentence Examples It is evident that, if required, congregations can be organized for supererogatory prayers.

https://forum.wordreference.com/threads/as-required-vs-if-required.509962

https://forum.wordreference.com/threads/as-required-vs-if-required.509962
as required vs if required | WordReference Forums
#2 Hi exit, They mean different things: as required means that the item/requirement in quesion is already necessary. For instance: As required by club rules, all members must keep dogs on leads – the rule already exists if required means that the item/requirement might be necessary.

https://www.merriam-webster.com/dictionary/required

https://www.merriam-webster.com/dictionary/required
Required Definition & Meaning – Merriam-Webster
re· quired ri-ˈkwī (-ə)rd Synonyms of required : stipulated as necessary to be done, made, or provided required reading required monthly payments submit the required proof of identification Uninsured motorists insurance is a required coverage in several states (and strongly encouraged in others) in all auto policies. Robert I. Mehr Synonyms

https://dictionary.cambridge.org/us/dictionary/english/required

https://dictionary.cambridge.org/us/dictionary/english/required
REQUIRED | definition in the Cambridge English Dictionary
REQUIRED meaning: necessary according to the rules or for a particular purpose: . Learn more.

https://dictionary.cambridge.org/dictionary/english/required

https://dictionary.cambridge.org/dictionary/english/required
REQUIRED | English meaning – Cambridge Dictionary
uk / rɪˈkwaɪəd / us Add to word list necessary according to the rules or for a particular purpose: We hope to be able to raise the required sum of money. The company failed to maintain its required minimum net capital. the required level / amount / degree lesoutrali bot