Time Flys vs. Time Flies – Which is Correct?
When you mean that time passes quickly, the correct expression is “time flies.” “Time flys” is a common misspelling because the verb sounds like it ends in a long “i” sound. Use flies with -ies, just as you write tries, cries, and carries in the third-person singular present-tense verb form.
Time Flys or Time Flies – Which is Correct?
Time flies is the correct expression. It means that time seems to pass very quickly, especially when you are enjoying yourself, busy, or looking back on an important period. Time flys is incorrect in standard English and should not be used in formal or professional writing.
The confusion comes from the pronunciation of flies. Although the word ends in -ies, it sounds like “flyz.” Writers may incorrectly apply the regular spelling pattern for some verbs and produce flys. However, when the verb fly is used with he, she, or it, the final y changes to ies: flies.
The Best Trick to Remember the Difference
Use the consonant test: when a verb ends in a consonant followed by y, change the y to ies for the third-person singular form. Therefore, fly becomes flies, just as try becomes tries and cry becomes cries. Remember: a bird flies, and so does time.
| Word | Part of Speech | Meaning | Example |
|---|---|---|---|
| time flies | Verb phrase | Time passes quickly | Time flies when you are having fun. |
| time flys | Incorrect spelling | No standard English meaning | Do not write: “Time flys so fast.” |
How to Use Time Flies
Time flies is an idiomatic expression used to say that time appears to pass rapidly. It is most common in casual and neutral conversation, but it is also appropriate in many forms of personal, reflective, and semi-formal writing. The expression often appears with when, as in time flies when you are having fun.
The phrase can describe a short enjoyable experience, the rapid growth of a child, the end of a vacation, or the passage of years. It usually expresses surprise or nostalgia rather than a literal claim about the speed of time.
Example 1: Time flies when you are spending time with close friends.
Example 2: I cannot believe our vacation is already over; time flies.
Example 3: Time flies when you are having fun, so make the most of the weekend.
What Are the Different Forms of Fly?
Fly is an irregular verb with several forms. Its base form is fly, its third-person singular present-tense form is flies, its past tense is flew, and its past participle is flown. The phrase time flies uses the present-tense form flies because time is a singular subject.
For example, you can write, “Birds fly south,” “The bird flies south,” “The bird flew south yesterday,” and “The bird has flown south.” The spelling rule that changes y to ies applies only to the present-tense third-person singular form.
Etymology of the Word Flies
Flies comes from the Old English verb flēogan, meaning “to fly.” The modern verb developed through Middle English before becoming fly in contemporary English. The expression time flies reflects the long-standing metaphor of time moving through the air or passing as quickly as a flying object.
Related Concepts
Understanding verb forms and spelling rules makes it easier to remember why time flies is correct and time flys is not.
- Third-person singular verbs: In the present tense, a verb usually takes -s after he, she, or it. When the verb ends in a consonant plus y, the y changes to ies, as in fly and flies.
- Irregular verbs: Some verbs do not follow a simple pattern in their past-tense forms. Fly is irregular because its past tense is flew and its past participle is flown.
- Idioms: An idiom is an expression whose meaning is understood as a whole. Time flies does not mean that time literally has wings; it means that time seems to pass quickly.
- Phonetic spelling errors: Writers sometimes spell words according to how they sound. Because flies is pronounced like “flyz,” it can be mistakenly written as flys.
Examples from Media and Literature
The correct spelling flies appears in familiar titles, quotations, and descriptions of passing time across popular culture and literature.
- Common expression: “Time flies when you are having fun” is a widely used proverb-like expression in conversation, advertising, and popular writing.
- Literature: Writers often use flying imagery to describe the rapid passage of life, as in reflective poems and essays about youth, aging, and memory.
- Music: Time Flies… 1994–2009 is the title of a compilation album by the English rock band Oasis.
- Film and television dialogue: Characters frequently say “time flies” when reuniting after many years or realizing that a vacation, school year, or relationship has ended.
- News and features: Journalists commonly use the phrase in anniversary articles and human-interest stories about organizations, careers, and changing communities.
Time Flies Synonyms
| Synonym | Definition |
|---|---|
| Time passes quickly | A direct, neutral way to express the meaning. |
| Time passes rapidly | A slightly more formal alternative emphasizing speed. |
| The days go by quickly | A conversational phrase describing rapidly passing days. |
| The years pass in a flash | A vivid expression often used when discussing long periods. |
| Time slips away | An idiomatic phrase suggesting that time passes unnoticed. |
Frequently Asked Questions
Question 1: Is it “time flys” or “time flies”?
The correct expression is time flies. Time flys is a spelling error.
Question 2: Why is “flies” spelled with “-ies”?
The verb fly ends in a consonant followed by y. In the third-person singular present tense, the y changes to ies, producing flies.
Question 3: What does “time flies” mean?
It means that time seems to pass quickly. The phrase is often used when someone is enjoying an experience or is surprised by how quickly a period has ended.
Conclusion
The correct spelling is time flies, not time flys. The phrase means that time passes quickly and commonly appears in the expression “time flies when you are having fun.” Remember that verbs ending in a consonant plus y change to -ies in the third-person singular form. Pro Tip: Using the correct spelling in emails, applications, and professional documents helps protect your credibility and reputation.
