Many English learners feel unsure when they want to talk about time passing quickly. You may have heard people say, “Wow, time has flew by!” and others say, “Time has flown by.”
Both sound very similar. Both are common in speech. But only one is correct in standard English.Parents say it when children grow up. Using the correct form helps you sound clear, confident, and natural.
This confusion happens because English verbs change form, and some verbs do not follow easy rules. The verb fly is one of those tricky verbs.
Learners often remember one form and use it everywhere. That is very normal, especially for beginners and non-native speakers.
This topic matters a lot in daily English. People use this expression all the time. Friends say it when meeting after years. Students say it after exams.
By the end of this lesson, you will clearly know which sentence is correct and why. You will understand the grammar rule in simple words.
You will see many real-life examples. You will also learn an easy trick to remember it forever. No heavy grammar words. No confusing explanations. Just clear English, explained like a teacher in a classroom.
What Does “Flew” Mean?
Flew is the simple past form of the verb fly.
Fly means to move through the air, like a bird or plane. It can also mean that time passes very fast.
Simple meaning
Flew = something moved or passed quickly in the past.
When to use it
Use flew when you talk about a finished action in the past and you mention or understand the time.
Grammar rule
Flew is used with the simple past tense.
It does not work with has, have, or had.
Example sentences
- The bird flew across the river.
- The plane flew very low yesterday.
- He flew to Dubai last week.
- The kite flew high in the sky.
- The days flew by during our vacation.
- Summer flew by so fast last year.
- The hours flew by while I was reading.
Common learner confusion
Many students think flew can be used after has because it sounds right. In spoken English, some native speakers also say it casually. But in correct grammar, flew cannot come after has or have.
❌ Time has flew by.
✅ Time flew by.
What Does “Flown” Mean?
Flown is the past participle form of the verb fly.
This form is used with helping verbs like has, have, or had.
Simple meaning
Flown = something has moved or passed quickly, and the result matters now.
When to use it
Use flown when you talk about time passing and you connect the past to the present moment.
Grammar rule
Flown is used in perfect tenses, especially the present perfect.
Structure:
has / have + flown
Example sentences
- Time has flown by so quickly.
- The years have flown by since college.
- This week has flown by.
- My childhood has flown by.
- The hours have flown by today.
- Our vacation has flown by too fast.
- The days have flown by without notice.
Common learner confusion
Learners often forget that English verbs have three forms: base, past, and past participle. They use the past form everywhere. That is why flew replaces flown by mistake.
❌ Time has flew by.
✅ Time has flown by.
Difference Between Flew and Flown
Understanding the difference becomes easy when you look at grammar, structure, and meaning together.
Comparison table
| Point | Flew | Flown |
|---|---|---|
| Verb type | Simple past | Past participle |
| Used with | No helping verb | Has / Have / Had |
| Tense | Past simple | Present perfect |
| Correct with “has” | ❌ No | ✅ Yes |
| Example | Time flew by | Time has flown by |
Usage difference
Use flew when you talk about the past only.
Use flown when the past connects to now.
Grammar logic
English perfect tenses need a past participle.
Fly → Flew → Flown
You cannot skip the third form.
Sentence structure difference
- Simple past: Subject + flew
Time flew by quickly. - Present perfect: Subject + has/have + flown
Time has flown by quickly.
Meaning comparison
“Time flew by” focuses on a past period.
“Time has flown by” shows surprise now, looking back.
Grammar Rules You Must Remember
Rule one
Never use flew after has or have.
Correct: Time has flown by.
Rule two
Use flew only for finished past actions.
Correct: The week flew by last month.
Rule three
Use flown when the sentence connects past and present.
Correct: The week has flown by already.
Rule four
Remember the three forms of irregular verbs.
Fly – Flew – Flown
This pattern appears again and again in English.
Common Mistakes Students Make
Most mistakes happen because English irregular verbs feel confusing. Learners also copy what they hear without checking grammar.
Common wrong sentences
❌ Time has flew by.
❌ The years have flew by.
❌ My childhood has flew by.
Correct sentences
✅ Time has flown by.
✅ The years have flown by.
✅ My childhood has flown by.
Easy correction tips
- If you see has or have, stop and check the verb form.
- Ask yourself: Is this past participle?
- Practice saying “has flown” together as one unit.
Easy Trick to Remember the Difference
Think of has as a helper that needs the third form of the verb.
Fly has three steps:
Fly → Flew → Flown
Here is the trick:
If has is present, the verb must end in -own sound.
Has flown
Has grown
Has known
No has flew. It breaks the pattern.
Say it slowly in your head. It works every time.
Daily Life Examples
These are sentences you can hear and use in normal conversations.
- Wow, time has flown by since we last met.
- This year has flown by so fast.
- My weekend has flown by again.
- The class flew by because it was interesting.
- The evening flew by while we were talking.
- The months have flown by without notice.
- Childhood has flown by before we even noticed.
- The meeting flew by quicker than expected.
- These days have flown by so quickly.
Practice Section
Choose the correct option.
- Time has (flew / flown) by so fast.
- The hours have (flew / flown) by today.
- The night (flew / flown) by yesterday.
- My vacation has (flew / flown) by already.
- The days (flew / flown) by during exams.
Answers
- flown
- flown
- flew
- flown
- flew
FAQs
What is the difference between flew and flown?
Flew is the simple past form. Flown is the past participle. Flew is used alone. Flown is used with has or have.
Which is correct: time has flew by or time has flown by?
Time has flown by is correct. Time has flew by is grammatically wrong.
Can we use flown without has or have?
No. Flown needs a helping verb like has, have, or had.
Is “time flew by” correct English?
Yes. It is correct when you talk about a finished past time.
Is this phrase formal or informal?
It works in both spoken and written English. It sounds natural and friendly.
Why do native speakers sometimes say “has flew”?
In casual speech, people make mistakes. But in correct grammar and writing, “has flown” is the right form.
Final Conclusion
English verb forms can feel confusing at first, and that is completely normal. The difference between flew and flown is small, but it matters a lot in correct English. Once you understand that flew is for the simple past and flown is for perfect tenses, the confusion starts to disappear.
Remember one simple idea. If you see has or have, your verb must be in the past participle form. That is why “time has flown by” is correct and “time has flew by” is not.
Do not worry if you make mistakes at first. Every learner does. Practice using this phrase in daily sentences. Say it out loud. Write it down. Slowly, it will feel natural.
And one day, you will smile and think, “Wow, learning English has flown by.”
I am Matthew Collins, an English language educator and content writer passionate about simplifying grammar and improving communication skills. I create clear, practical, and engaging lessons to help learners build confidence in English.