English can be fascinating, expressive, and surprisingly difficult at the same time. Even people who speak and write English every day often stop in the middle of a sentence to question a spelling, punctuation mark, or word choice. If you’ve ever searched online to confirm whether a word is correct, you’re in good company. Grammar mistakes are incredibly common, and improving your writing starts with understanding why these mistakes happen.

At ABNewly, we regularly explore the grammar questions that cause the most confusion among writers, students, professionals, and language learners. From spelling challenges to punctuation problems, this guide covers some of the most common issues and explains them in a simple, practical way.

Double Letters: Why Some Words Need Them and Others Don’t

One area of English grammar that frequently causes confusion involves words that double a consonant when a suffix is added. For example, many people wonder whether the correct spelling is transferring or transfering. The correct form is transferring, with a double “r.”

The reason is linked to pronunciation and stress patterns. In words where the stress falls on the final syllable, the final consonant is often doubled before adding endings such as “-ing” or “-ed.” This is why we write referring, occurring, and transferring.

However, not every word follows this pattern. Words like offering and suffering keep a single consonant because the stress falls on the first syllable. Once you recognize these patterns, many spelling decisions become easier.

Understanding Percent: Symbol or Word?

Another grammar topic that generates endless questions is whether to use a percentage symbol or spell the word out. The debate surrounding per-cent-or-percent has existed for years, particularly among writers who work with different English styles.

In modern American English, percent is generally written as one word. Traditional British English often preferred per cent as two separate words, although many publications now use the single-word version. This ongoing discussion is why the topic of per-cent-or-percent continues to attract attention from writers worldwide.

When it comes to style, the “%” symbol is commonly used in reports, statistics, charts, and informal writing. In formal essays, books, and professional documents, spelling out the word is often preferred. Regardless of which option you choose, consistency is important. If you’re writing about per-cent-or-percent, stick to one style throughout the document.

Homophones: The Words That Sound Alike but Mean Different Things

Homophones are responsible for countless grammar mistakes. These are words that sound the same when spoken but have completely different meanings.

Consider waive and wave. You might waive a fee, meaning you choose not to enforce it. On the other hand, you wave at someone when saying hello or goodbye. Because they sound identical, many writers accidentally use the wrong word.

Another common example is creek and creak. A creek is a narrow stream of water, while a creak is the noise made by an old door or floorboard. Relying entirely on pronunciation can easily lead to errors, so checking definitions is always a smart habit.

The Comma Rules Most People Never Fully Learn

Commas seem simple until you actually need to use them correctly. One phrase that often causes uncertainty is in fact.

When the phrase begins a sentence, it should usually be followed by a comma:

In fact, the results exceeded expectations.

When it appears in the middle of a sentence as additional information, commas are generally placed on both sides:

The results were, in fact, better than expected.

The correct use of commas depends heavily on sentence structure and meaning. Rather than memorizing rigid rules, it helps to think about how the phrase functions within the sentence.

Formal Words That Are Often Misused

Certain words sound sophisticated but are frequently used incorrectly. One example is aforementioned. While it is grammatically correct, it often feels overly formal in everyday writing.

Instead of writing:

The aforementioned report was reviewed by management.

You could simply write:

The report mentioned earlier was reviewed by management.

The second version sounds more natural and is usually easier for readers to understand.

Similarly, deactivate and inactivate are sometimes confused. Deactivate generally refers to intentionally turning something off, while inactivate is more common in scientific and technical fields where something is rendered inactive through a specific process.

Professional Greetings and Sign-Offs

Email etiquette may seem straightforward, but small grammar mistakes can create a poor impression.

One common error involves the phrase your sincerely. The correct form is yours sincerely. The word “yours” is possessive and has been the accepted closing in formal correspondence for generations.

Group greetings can also raise questions. Dear All remains widely accepted in professional communication, although alternatives such as Dear Team or Dear Colleagues may sound more personal and engaging depending on the situation.

“Lies Ahead” or “Lays Ahead”?

This is one of the trickiest grammar points in English because it involves two closely related verbs.

The correct expression is lies ahead.

For example:

Many exciting opportunities lie ahead.

The confusion comes from the verbs lie and lay. The verb lie means to rest or exist in a particular position and does not require an object. The verb lay means to place something somewhere and requires an object.

What makes things even more confusing is that the past tense of lie is lay. As a result, writers often mix the two forms together. Understanding this distinction can prevent a surprisingly common mistake.

Final Thoughts

Mastering English grammar is not about memorizing endless rules. It is about communicating your ideas clearly and confidently. Whether you’re struggling with punctuation, spelling patterns, word choices, or the ongoing per-cent-or-percent debate, every grammar question has an answer that becomes easier to understand with practice.

Strong writers are not people who never make mistakes. They are people who continue learning, double-checking their work, and improving over time. The more attention you pay to grammar fundamentals, the stronger and more professional your writing becomes.