Is It Sped or Speeded: Unraveling the Past Tense of Speed
Quick Answer
Both sped and speeded are correct. Use sped when someone moves fast. Use speeded up when something gets faster.
Speed, Sped, Speeded — See the Pattern
Look at these sentences. Watch how the word speed changes:
- The car sped down the road. (past — moving fast)
- She speeded up the video. (past — making it faster)
- The train has sped through this town for years. (with have/has/had)
- They speeded up the work last week. (past — making it faster)
Did you see the pattern? Sped is used when someone moves fast. Speeded is used with up — when something gets faster.
| Present | Past (moving fast) | Past (with “up”) | With have/has/had |
|---|---|---|---|
| speed | sped | speeded up | sped / speeded |
When to Use Sped and When to Use Speeded
Both words are correct, but they are used in different ways. Here is the easy rule:
Use “sped” when someone or something moves fast:
- The dog sped across the garden.
- He sped past me on his bike.
Use “speeded up” when something gets faster:
- The factory speeded up production.
- We speeded up the process.
Easy way to remember: If you see up after the verb, use speeded. If there is no up, use sped.
You can also say “sped up” — that is correct too. But “speeded up” is the more traditional form.
The Rule in One Line: Sped = moved fast. Speeded up = made faster.
How to Use Sped and Speeded in Everyday English
- The ambulance sped to the hospital. (it moved fast)
- I sped through breakfast this morning. (I did it quickly)
- She speeded up the video to watch it faster. (she made it faster)
- The bus sped past the stop without waiting. (it moved fast)
- They speeded up the delivery so it arrived today. (they made it faster)
You are doing great. Now let us look at the mistakes many learners make.
The Most Common Mistake With Sped and Speeded
Even advanced learners mix up sped and speeded sometimes — so if you get confused, you are not alone. The biggest mistake is using “speeded” on its own, without “up”.
✗ The car speeded down the highway.
✓ The car sped down the highway.
✗ She sped up the video. (not wrong, but less common)
✓ She speeded up the video. (more traditional with “up”)
How to remember: Think of “sped” as the short, fast form — like something moving quickly. Think of “speeded up” as the longer form — for when you are making something go faster, step by step.
Other verbs that change like this: feed → fed, bleed → bled, breed → bred. They all lose the “ee” and get a short vowel.
Test Yourself: Sped or Speeded?
Choose the best answer for each sentence. Click Check to see if you are right.
1. The rabbit _______ across the field.
2. We _______ up the music for the party.
3. The taxi _______ through the city streets.
4. The company _______ up delivery times this year.
5. She _______ past me without saying hello.
Keep Going — You Are Building Something
You just learned when to use sped and speeded. That is one more verb you will never get wrong again.
Now here is something interesting. The verb come also changes in a way that confuses many learners. Do you say “I come yesterday” or “I came yesterday”? And what about “I have came” or “I have come“? One of those is wrong — do you know which one?
Next lesson: Come or Came: What Is the Past Tense of Come?
Source
Harper, Douglas. “Etymology of speed.” Online Etymology Dictionary
My name is Khamis Maiouf. I am the creator of the English Teacher Site, dedicated to providing valuable resources and insights for students around the world. With a passion for education and a commitment to helping students enhance their skills, I aim to make English teaching more effective and enjoyable for both educators and students.
