* "Is" is the standard, modern English present tense verb form for the third person singular. It's straightforward and used in everyday language.
* "If it be" is a more formal and slightly archaic way of expressing the subjunctive mood. The subjunctive mood is used to express something that is hypothetical, uncertain, or a wish.
Examples:
* Modern: If it is sunny tomorrow, we'll go to the park. (Simple, everyday language)
* Archaic/Formal: If it be sunny tomorrow, we'll go to the park. (More formal, using the subjunctive)
Why use "if it be"?:
* Formal Writing: While not commonly used in modern conversational English, "if it be" can still be found in very formal writing like legal documents, poetry, or certain literary styles.
* Emphasis: Using the subjunctive can subtly emphasize the hypothetical nature of the statement.
* Archaism: Sometimes authors use "if it be" to create a sense of historical setting or evoke a sense of formality.
In Summary:
The difference between "if it be" and "is" is primarily about formality and the use of the subjunctive mood. "Is" is the standard modern form, while "if it be" is a more archaic and formal way of expressing the same idea.