"Necessary" is an adjective. Here are examples of its use in sentences:
The company said that layoffs were necessary.
This fee will cover the necessary reading materials.
Use a comma before a parenthesis when the information within the parentheses is not necessary for the sentence to make sense. Use a comma after a parenthesis when the information inside the parentheses is necessary for the sentence to be understood.
No, a semicolon is not necessary in a compound sentence if a coordinating conjunction is not used. You can use a comma to separate the independent clauses in a compound sentence instead.
Use "that" to introduce essential information that is necessary for the meaning of the sentence. Use "what" to introduce non-essential information that adds extra detail but is not crucial for understanding the sentence.
Use "which" to introduce non-essential clauses that provide additional information and can be omitted without changing the meaning of the sentence. Use "that" to introduce essential clauses that are necessary to the meaning of the sentence and cannot be omitted.
It is not usually necessary. You would only do it if the expression were an extra phrase or a clause.
You would usally say " Now, was that really necessary?"
Use a comma before a parenthesis when the information within the parentheses is not necessary for the sentence to make sense. Use a comma after a parenthesis when the information inside the parentheses is necessary for the sentence to be understood.
No, a semicolon is not necessary in a compound sentence if a coordinating conjunction is not used. You can use a comma to separate the independent clauses in a compound sentence instead.
During my cold, my congestion made frequent expectoration necessary.
As a verb e.g. " It was necessary to recalculate the expense budget " .
It was necessary for Margaret to subdue her enthusiasm, as this was a solemn occasion.
The importation of bananas was necessary as they could not grow them in their climate.
Warm coats were necessary for the ski trip to Colorado.
Use "that" to introduce essential information that is necessary for the meaning of the sentence. Use "what" to introduce non-essential information that adds extra detail but is not crucial for understanding the sentence.
I believe that when you have an appositive in a sentence that when it is not necessary you surround it with commas and when it is necessary, you don't use commas. This is what I believe the rule is, but I am not 100% sure. Anyone feel free to correct me if this is in any way not correct.
No, it is not necessary for your thesis to be the final sentence in your paper.
Use "which" to introduce non-essential clauses that provide additional information and can be omitted without changing the meaning of the sentence. Use "that" to introduce essential clauses that are necessary to the meaning of the sentence and cannot be omitted.