Have you ever paused while reading or writing and wondered, “Why is ‘hopping’ spelled with a double ‘p’ but ‘hoping’ only has one?” You’re not alone! This is a common question for non-native English speakers as well as native speakers.
You will likely be surprised at the reason. The choice of the single or the double consonant reflects the pronunciation of the vowel sound just before that consonant.
Understanding this pattern can help you correctly guess vowel pronunciation in words you might be unsure how to say correctly.
The Rule: Short vs. Long Vowels
The main reason for using a single or a double consonant in English spelling has to do with vowel pronunciation.
English uses the following code to indicate whether a vowel uses the short sound (as in hop) or the long one (as in hope).
- Single consonant = Long vowel:
- Example: hoping (ho-ping) → The “o” is pronounced with a long vowel/oʊ/ (like in “go.”) The “p” is single, showing that the vowel is long.
- Double consonant = Short vowel:
- Example: hopping (hop-ping) → The “o” is pronounced with a short vowel /ɑ/ (like in “hot.”) The “p” is doubled, indicating that the vowel is short.
📢Listen to these words here:
While long vowels are generally spelled with two vowel letters, some are spelled with a single vowel. This is where the single/double consonant rule can help you determine which vowel pronunciation is the right one.
Let’s take a look at some similar words, so you can clearly see this rule in action:
Long Sound | Short Sound | |
A | paper | happy |
E | fetus | fennel |
I | tiger | bigger |
O | bonus | Bonnie |
U | humor | hummer |
📢Listen to these words here:
If you’re not sure of the difference between long and short vowels in English, you can learn all about them in an earlier blog I wrote: https://englishcoachnicole.com/long-and-short-vowels-in-american-english/
Why Does This Matter?
Vowel sounds are important. Pronouncing long and short vowels correctly will improve your clarity and help your spoken English sound more natural.
However, non-native English speakers are sometimes frustrated by the seeming lack of consistency between English spelling and pronunciation.
While there are often exceptions to the rules, there are actually many solid spelling-pronunciation rules that can guide you in determining which vowel pronunciation to use. Recognizing these patterns can help you make more educated pronunciation guesses.
Unfortunately, most non-native speakers are unaware that this guidance exists, since they never learned the numerous rules that native speakers spend years mastering in elementary school to learn how to write.
The single vs double consonant rule is just one clue that can help.
More Word Pairs
To fully understand how this rule works, let’s play with some words. Let’s analyze how the spelling affects the pronunciation of the vowel sounds in each similar word. Some of the following words are real words and some are not.
Long Sound | Short Sound |
coding | codding |
typing | tipping |
ego | Eggo |
baby | babby |
lady | laddy |
litle | little |
hapen | happen |
📢Listen to these words here:
Even though some of these are not real words, the ability to recognize the code to correct pronunciation here will help you guess the pronunciation of things like the names of people, brands and unfamiliar words you come across.
Test Yourself
Is the underlined vowel pronounced with its long or short sound?
mull | femur |
Bennett | bugle |
sloping | miter |
finance | sloppy |
jabber | tassel |
Colleen | millet |
Temu | maple |
idol | fennel |
Asics | Midas |
Jurassic |
(Answers at the end of the article)
Exceptions
Like most English spelling rules, this pattern doesn’t work 100% of the time. But even so, it does make English pronunciation more predictable. Don’t be fooled into thinking there are no patterns and that the exceptions are the norm. They are not!
Here are a couple examples of exceptions: “finish” has a short I before the N, so you would think it should be spelled with a double N, like the nationality or language: Finnish. You would also expect “Robert” and “Robin” to be pronounced with the long o based on their spelling, but in this case, they are both short o’s.
Final Tip
Next time you see a word and wonder how to pronounce it, check and see if you find any pronunciation clues, like the consonant after the vowel. If it’s single, expect a long vowel sound. If it’s doubled, the vowel will be short. Recognizing this pattern can help you predict pronunciation with more confidence, making English feel more consistent and easier to master!
If you are interested in learning more about how to determine English pronunciation based on spelling, join my new Vowels mastery class.
Answers to “Test Yourself”:
Answers | |
mull | short u |
Bennett | short e |
sloping | long o |
finance | long i |
jabber | short a |
Colleen | short o |
Temu | long e |
idol | long i |
Asics | long a |
Jurassic | short a |
femur | long e |
bugle | long u |
miter | long i |
sloppy | short o |
tassel | short a |
millet | short i |
maple | long a |
fennel | short e |
Midas | long i |




How common is this pattern? I seem to find so many exceptions even in a short passage of text. Eg bugle, maple, cabin, presence, receive, against, energy, evening, ventilate and I could go on and on.
This is an excellent question. The single versus double consonant rule applies in certain situations, such as when you are comparing related words with suffixes, especially when adding a vowel suffix like -ing, -ed, -er, or -est. In these cases, the spelling pattern is not really “one consonant after the vowel = long vowel.”
It is more like:
vowel + consonant + silent E = long vowel
short vowel + consonant + vowel suffix = double the consonant to protect the short vowel
So:
hope → hoping
The silent E drops before -ing, but the long vowel remains.
hop → hopping
The P doubles because the vowel before it is short.
That rule is fairly solid when you are talking about this specific spelling process. But it does not work well as a general rule for every English word that has “vowel + one consonant” or “vowel + two consonants.”
I’ve heard tinnitus pronounced with both a long and short I following a double n. It makes sense to me that it should be short, as pronounced by most medical professional (but not all)
Interesting question. I had to do a little research, since I’ve always pronounced it with a long i (the second i). I consulted 4 different dictionaries. Only one listed the long i pronunciation as standard, as if was the secondary entry. I listened to several speakers in youglish.com and found all the medical practitioners pronounced it with the short i, and a larger majority of the non-medical speakers used the long i pronunciation.