English Grammar Rules & Mistakes: Learn All of the Essentials: Writing, Speaking, Literature and Punctuation Rules Complete with 10 Key Skills and Over 200 Common Error Examples

Semicolon (;)
It is similar in usage to the colon to a large extent, but the use cases of the
semicolon are limited. Read on to learn the errors.
Use the semicolon before words like for example, therefore, i.e., and
however, when they are about to make a complete statement.
I am sure the newly passed economic bill will favor us; for
example, allowing foreign investors, releasing bonds to citizens in
diaspora, investing in infrastructure and encouraging exportation
of local products will return our economy back to the seat of glory.
I have told you before; i.e., drinking and driving will truncate his life.
Where you do not have conjunction words such as “and,” a semicolon is
good to apply.
Incorrect: Let’s meet at the bar I have good news for you.
Can you come to my office I have a job for you.
Correct: 
Let’s meet at the bar; I have good news for you.
Can you come to my office; I have a job for you.
Quotation Marks (“”)
To write intelligently in the English language, the quotation mark is a
member of a punctuation marks category you cannot do without. Whether
you are writing formally or informally, you must use quotation marks in a
sentence, word or phrase. When you put quotation marks around a word,
phrase or clause, or in a sentence, these instances become “quoted.” What are
the rules to follow in avoiding quotation marks errors in English grammar?
Read on!
If you need to quote a question statement, ensure to put quotation marks after
the question mark. Quotation marks, when they are needed, always carry the
larger power above other punctuation in a sentence.
Incorrect:
“After doing that, what next”? He asked.

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He said to her, “Do you think we can have a kiss”?
She said, “He said, are you finished with the homework”?
Correct: