5. Use topic sentences
The first sentence of each paragraph of the body of the essay is called the topic sentence. It is usually used to play double role: first of all it gives the reader a summary of what will be in the paragraph and it also gives one reason that supports the author’s thesis statement.

6. Get to know and use the conditionals like first, second and third widely
In case if you learn the conditionals, it can possibly become even more helpful for you than studying all these complex tenses of the English grammar. Conditionals are considered to be especially useful when you are going to express your opinion and provides reasons – these are two things, which are a must in for any TOEFL independent writing task.
Therefore, it is also necessary to point out that each conditional has somewhat different meaning. Everything depends on what the reality, possibility and time is. Before using them in your TOEFL essay, you are to get to know how to use conditional and practice them as much as possible. The reason of it is using the conditionals in an incorrect way is considered to be one of the most widespread mistakes, present in TOEFL essays.

7. You should never begin a sentence with a conjunction
Such words as and, because, but, etc. are called conjunctions. In English conjunctions are used purely to connect sentences, and a sentence never begins with them.

8. Get to learn hot to use the comma in English correctly
In case if you use commas in a correct way, this will bring your writing to life. There is the good news: lots of languages use the comma. And as for the bad news, the rules of how the comma is used are usually different from one language to another. In order to write your TOEFL essay successfully, you will have to be aware of the rules of using commas in English, because it will make your writing much easier to understand and you will be able to get more scores.

9. Use the active voice
You have probably known already that there are two “voices”, used in English grammar: they are active voice and passive voice.

And here they come:
 Active voice: Children plant the trees.
 Passive voice: The trees are planted by children.

Therefore, it is necessary to keep in mind that the active voice is considered to be much stronger than the passive voice. This is why it is greatly advisable to use the active voice as much as possible while writing your TOEFL essay.

10. Use transitional words and phrases
It should be pointed out that it becomes much easier to understand someone’s writing, if it goes with different transitional words and phrases. It is quite possible and easy to connect ideas and present then to the reader in a logical order. Here come several examples of transitional words and phrases: in addition…, in conclusion…, moreover..., in closing…, more importantly…, first of all…, etc.