What Is the Past Tense of Teach?
The past tense of teach is taught. It is an irregular verb, so it does not follow the standard pattern of adding -ed. You say taught for both the simple past and the past participle. For example: “She taught English for ten years” and “He has taught at this school since 2015.”
Quick Answer
Teach → Taught (past tense and past participle).
No other form is correct. Avoid saying teached or teached—these are common errors.
Verb Forms of Teach
| Base Form | Past Tense | Past Participle |
|---|---|---|
| teach | taught | taught |
This table shows that taught does double duty. In sentences like “I taught yesterday” (simple past) and “I have taught before” (present perfect), the word stays the same.
When to Use Taught
Simple Past Tense
Use taught for actions that finished in the past. It works in both formal and informal settings.
- Formal email: “I taught the advanced grammar module last semester.”
- Casual conversation: “My dad taught me how to ride a bike.”
Past Participle (with have, has, had)
Use taught with auxiliary verbs to form perfect tenses.
- Present perfect: “She has taught at three different schools.”
- Past perfect: “They had taught the lesson before the test.”
- Passive voice: “The course was taught by a visiting professor.”
Natural Examples
Here are examples that show how taught sounds in real writing and speech.
- “Last year, I taught a workshop on public speaking.”
- “He taught himself to play the guitar.”
- “The program has taught hundreds of students.”
- “We were taught to respect deadlines.”
- “She taught the children how to write a letter.”
Common Mistakes
Mistake 1: Using “teached”
Some learners say teached by analogy with regular verbs. This is incorrect. Always use taught.
Wrong: “He teached math last year.”
Right: “He taught math last year.”
Mistake 2: Confusing “taught” with “thought”
Taught and thought sound similar but have different meanings. Taught relates to teaching; thought is the past tense of think.
Wrong: “I thought the class.” (This means you had a thought about the class, not that you taught it.)
Right: “I taught the class.”
Mistake 3: Using “taught” as a present tense
Remember that taught is only for past time. For present, use teach or teaches.
Wrong: “She taught English now.”
Right: “She teaches English now.”
Better Alternatives and When to Use Them
Depending on context, you might choose a different verb to be more precise.
- Instructed – Use in formal or written contexts, like training manuals: “The trainer instructed the team on safety procedures.”
- Coached – Best for sports or one-on-one skill building: “He coached the young players on passing.”
- Tutored – For individual academic help: “She tutored students in algebra.”
- Educated – Broader, often used for formal schooling: “The program educated adults about financial planning.”
Use taught for general teaching situations. Use alternatives when you want to emphasize the method or setting.
Comparison: Teach vs. Other Common Irregular Verbs
| Base Form | Past Tense | Past Participle |
|---|---|---|
| teach | taught | taught |
| catch | caught | caught |
| buy | bought | bought |
| bring | brought | brought |
Notice the pattern: teach, catch, buy, and bring all change to -aught or -ought in the past. This can help you remember taught.
Formal vs. Informal Tone
Taught works in both formal and informal English. However, the surrounding words matter.
- Formal email: “I taught the course on contract law last quarter.”
- Informal conversation: “My mom taught me that recipe.”
In academic or professional writing, you might pair taught with precise details: “The workshop taught participants how to analyze data.” In everyday speech, it is fine to say, “She taught me a lot.”
Mini Practice: 4 Questions
Test your understanding. Choose the correct form of teach for each sentence.
- Yesterday, I _____ my sister how to bake cookies.
a) teached
b) taught
c) teach
Answer: b) taught - She has _____ at this university for five years.
a) teached
b) taught
c) teaching
Answer: b) taught - The lesson was _____ by a guest speaker.
a) teached
b) taught
c) teaching
Answer: b) taught - They _____ us the rules last week.
a) teached
b) taught
c) teach
Answer: b) taught
FAQ
1. Is “teached” ever correct?
No. Teached is not a standard English word. The correct past tense is always taught.
2. Can I use “taught” for the present perfect?
Yes. For example: “I have taught English for many years.” Taught is the past participle, so it works with have, has, or had.
3. What is the difference between “taught” and “thought”?
Taught is the past tense of teach. Thought is the past tense of think. They sound similar but have different meanings. Example: “I taught the class” vs. “I thought about the class.”
4. How do I use “taught” in a passive sentence?
Place taught after a form of be. For example: “The students were taught by a specialist.” Or “The course is taught online.”
Final Tip
If you are ever unsure, remember that teach rhymes with reach, but its past tense taught rhymes with caught. This small memory trick can help you avoid the common teached mistake. For more help with irregular verbs, explore our Past Tense Forms and Past Participle Forms sections. If you have questions, visit our FAQ or contact us.
