Past Tense of Upset: Forms, Meaning, Rules & Example Sentences 2026

Have you ever written a sentence like “Yesterday, I upset my friend” and wondered whether upset is really the correct past tense form? Many English learners get confused because most verbs change in the past tense, but upset looks exactly the same in the present and past forms.

This can make English grammar feel tricky. You may ask questions such as What is the past tense of upset?, Is upset an irregular verb?, or How do I use upset in a sentence correctly?

The good news is that the verb upset is actually quite simple once you understand its pattern. It is an irregular verb that keeps the same spelling in the present, past, and past participle forms.

In this guide, you’ll learn the meaning of upset, its past tense form, sentence structures, grammar rules, examples, common mistakes, exercises, and frequently asked questions.

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Quick Answer (Featured Snippet)

The past tense of upset is upset.

Verb Forms of Upset

Unlike regular verbs that add ed, the verb upset is irregular and its form does not change.

Base Verb (V1)	Past Tense (V2)	Past Participle (V3)
upset	upset	upset

Examples:

• I upset my teacher yesterday.
• She was upset by the news.
• They have upset their parents many times.

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What Is Upset Past Tense?

The upset past tense refers to the past form of the verb upset, which means:

• To make someone unhappy, worried, or disappointed
• To disturb or trouble someone
• To cause an unexpected change or problem

The verb upset is irregular because it does not follow the normal  ed pattern.

Present Tense

• I upset people when I speak without thinking.
• They upset their coach by arriving late.

Past Tense

• I upset my friend yesterday.
• They upset their coach last week.

Notice that the spelling remains upset in both tenses.

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Structure of Sentences of Upset Past Tense

When using upset in the past tense, sentence structure follows normal past simple patterns.

Affirmative Structure

Subject + upset + object

Examples:

• I upset my sister.
• She upset her parents.
• They upset the manager.

Negative Structure

Subject + did not + upset + object

Examples:

• I did not upset anyone.
• She didn’t upset her teacher.
• They did not upset the team.

Interrogative Structure

Did + subject + upset + object?

Examples:

• Did you upset your friend?
• Did she upset her mother?
• Did they upset the customer?

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Formation of Upset Past Tense

The verb upset is an irregular verb.

Verb Forms of Upset

Verb Form	Word
Base Form (V1)	upset
Past Form (V2)	upset
Past Participle (V3)	upset
Present Participle	upsetting

Examples

• Present: I upset people sometimes.
• Past: I upset someone yesterday.
• Past Participle: I have upset many people.
• Continuous: I am upsetting everyone.

Important Point

Unlike regular verbs:

• walk → walked
• play → played

The verb upset does not change:

• upset → upset → upset

Contractions

Negative forms often use contractions:

• didn’t upset
• hasn’t upset
• haven’t upset

Examples:

• I didn’t upset anyone.
• She hasn’t upset her parents.

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How to Use Upset Past Tense

The past tense upset is used when talking about something that happened and finished in the past.

1. Making Someone Unhappy

• I upset my friend with my comments.
• She upset her brother during the argument.

2. Causing Emotional Pain

• The news upset everyone.
• His words upset the children.

3. Creating Problems

• The delay upset our plans.
• Heavy rain upset the schedule.

4. Talking About a Specific Past Event

• Yesterday, I upset my teacher.
• Last week, they upset the entire team.

Pronunciation Tip

The verb upset is pronounced differently depending on its use.

As a verb:

• up SET

As an adjective:

• UP set

Examples:

• I upset my friend. (verb)
• My friend is upset. (adjective)

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Structure or Verb Pattern Table Upset

Usage	Structure	Example
Affirmative	Subject + upset + object	I upset my friend.
Negative	Subject + did not + upset + object	I didn’t upset my friend.
Question	Did + subject + upset + object?	Did you upset your friend?
Present Perfect	Subject + have/has + upset	She has upset her parents.
Continuous	Subject + be + upsetting	He is upsetting everyone.

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Real Life Examples

Here are some practical examples of upset in everyday English.

Affirmative Sentences

• I upset my mother by forgetting her birthday.
• She upset her classmates with rude remarks.
• The mistake upset the customer.
• They upset their coach by missing practice.

Negative Sentences

• I did not upset anyone intentionally.
• She didn’t upset her boss.
• They did not upset the neighbors.

Questions

• Did you upset your friend?
• Did she upset her parents?
• Did they upset the teacher?

Formal Examples

• The announcement upset many employees.
• The decision upset several investors.

Informal Examples

• Sorry, I upset you.
• He really upset me yesterday.

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Common Mistakes

Common Mistakes with Upset

Wrong	Correct	Why?
I upsetted him.	I upset him.	No ed / ted is added.
She has upsetted me.	She has upset me.	Past participle is upset, not upsetted.
Did you upsetted her?	Did you upset her?	After did, use base form (V1).
He didn’t upsetted me.	He didn’t upset me.	After didn’t, use base form (V1).

Incorrect

• I upsetted my friend yesterday.

Correct

• I upset my friend yesterday.

Explanation: Upset is already the past tense form.

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Key Grammar Rules

1. Upset Is an Irregular Verb

The spelling does not change.

• upset → upset → upset

2. Use the Base Form After “Did”

Correct:

• Did you upset her?

Incorrect:

• Did you upsetted her?

3. Use “Upset” as the Past Participle

• I have upset my parents.
• She has upset her teacher.

4. The Meaning Can Be Emotional or Situational

• The comment upset him. (emotional)
• The storm upset our plans. (situational)

5. Don’t Confuse the Verb and Adjective

Verb:

• I upset him.

Adjective:

• He is upset.

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Comparisons with Similar Grammar Forms

Upset vs Upsetted

Incorrect	Correct
upsetted	upset

Examples:

• ❌ I upsetted my friend.
• ✅ I upset my friend.

Upset vs Annoy

Both involve negative feelings, but they are slightly different.

Upset

• Often causes sadness or emotional hurt.

Annoy

• Causes irritation.

Examples:

• The news upset her.
• The noise annoyed her.

Upset vs Disturb

Upset usually refers to emotional impact.

Disturb often means interrupting peace or comfort.

Examples:

• The comment upset me.
• The loud music disturbed me.

Upset (Verb) vs Upset (Adjective)

Verb:

• I upset my brother.

Adjective:

• My brother is upset.

This distinction is important because learners often confuse the two uses.

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Exercises

Exercise 1: Fill in the Blanks

Use the correct form of upset.

1. Yesterday, I ______ my friend.
2. She has ______ her parents.
3. Did you ______ your teacher?
4. They ______ the manager last week.
5. I did not ______ anyone.

Exercise 2: Correct the Mistakes

1. I upsetted my brother.
2. She has upsetted her mother.
3. Did you upsetted him?
4. We didn’t upsetted anyone.
5. They have upsetted their coach.

Exercise 3: Rewrite the Sentences

Change these affirmative sentences into negative sentences.

1. I upset my friend.
2. She upset her teacher.
3. They upset the manager.

Exercise 4: Multiple Choice Questions

1. What is the past tense of upset?

A. upsetted

B. upsetting

C. upset

D. upsets

2. Which sentence is correct?

A. I upsetted him.

B. I upset him.

C. I upsetting him.

D. I upsets him.

3. Which sentence is a question?

A. I upset her.

B. She upset him.

C. Did you upset her?

D. They upset us.

Answer Key

Exercise 1

1. upset
2. upset
3. upset
4. upset
5. upset

Exercise 2

1. I upset my brother.
2. She has upset her mother.
3. Did you upset him?
4. We didn’t upset anyone.
5. They have upset their coach.

Exercise 3

1. I did not upset my friend.
2. She did not upset her teacher.
3. They did not upset the manager.

Exercise 4

1. C
2. B
3. C

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FAQs

What is the past tense of upset?

The past tense of upset is upset.

Is upset a regular or irregular verb?

It is an irregular verb because it does not add  ed.

What is the past participle of upset?

The past participle is also upset.

Is “upsetted” a word?

No. Standard English uses upset, not upsetted.

Can upset be an adjective?

Yes.

• She is upset.
• They were upset about the decision.

What is the V1, V2, and V3 form of upset?

• V1: upset
• V2: upset
• V3: upset

How do I use upset in a negative sentence?

Use did not + upset.

Example:

• I didn’t upset anyone.

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Conclusion

Understanding the upset past tense is easier than many learners expect. The most important thing to remember is that upset is an irregular verb whose base form, past tense, and past participle are all the same: upset. Because the spelling never changes, students often make mistakes such as upsetted, but this form is incorrect.

When using the past tense, simply write upset for completed actions in the past, and use didn’t upset or Did … upset? for negative and question forms. Also remember the difference between upset as a verb (I upset him) and as an adjective (He is upset).

With regular practice, reading, and sentence building exercises, you’ll quickly become comfortable using upset correctly in everyday English conversations and writing.