First of all, to write an essay, one must learn how to write a simple paragraph. the best way of writing is to write what you read in daily routine and get it checked.
Essentials of Essay:
Introduction of the Essay:
Introduction usually consist of two things ( Motivator+ thesis Statement), one may start their intro with the quotation , an anecdote, dialogue, opposite opinion etc but one should keep in their mind that whatever they write should be relevant and the purpose of all these method is to catch the attention of the reader which is, ultimately, followed by Thesis statement(statement which one tries to prove in their essay).
In addition, Intro may also be the precis/summary of your whole essay which should be around 150 to 200 words. In sum, you whole essay should be look like that:
1. Introduction ( Consist of Motivator + Thesis Statement) then,
2. Body
Body consist of paragraphs
Paragraph consist of:
the Topic sentence(First sentence of your paragraph which is the base of your paragraph and which one must prove). Topic sentence is followed by the Specific supports( the support which proves one,s topic sentence)
Specific support consist of three kinds of support:
- Statements by authority
- Examples
- statistics
then,
3.Conclusion:
Conclusion contains,
Reworded Thesis Statement + Clincher( Clincher is your final statement which shows that your essay has been finished.
Moreover,Conclusion may be the complete summary of your essay as well but in different words.Regards.

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"Our Lord, give us the good in this world and the good in the hereafter." (Al-Qur'an, 2:201).