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Grammar

What Are Irregular Verbs? + Examples of 33 Irregular Verbs

Irregular verbs don’t follow the typical format for their past tense and past participle. Regular verbs end in -ed or -d in these forms, while irregular verbs vary widely.

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Introduction

Our text compare tool is a fantastic, lightweight tool that provides plagiarism checks between two documents. Whether you are a student, blogger or publisher, this tool offers a great solution to detect and compare similarities between any two pieces of text. In this article, I will discuss the different ways to use the tool, the primary features of the tool and who this tool is for. There is an FAQ at the bottom if you run into any issues when trying to use the tool.

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Ways to compare

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Simple text compare

You can also easily compare text by copying and pasting it into each field, as demonstrated below.

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/An irregular verb is a verb that doesn’t follow the typical rules for how its past tense and past participle are formed. 

Unlike regular verbs, irregular verbs do not follow a predictable formula for forming the past tense and past participle verb tenses

Since there are hundreds of irregular verbs in English, not all of them can be memorized. 

Get insight into what irregular verbs are and 33 examples of commonly used irregular verbs.

Then, review your copy for proper grammar, spelling, and punctuation with the Originality.ai Grammar Checker.

What Defines an Irregular Verb?

Discussing irregular verbs requires a quick refresher. So first, let’s take a brief look at the past participle verb tense and how this looks in a regular verb.

What is the past participle?

The past participle of verb tenses describes the type or form of a verb with “have” or “has.”

In writing, the past participle creates perfect or passive tenses; it’s usually identical to the past simple form of a verb. 

However, the past participle of an irregular verb isn’t formed by any predictable format or formula.

The Past Participles of Regular Verbs

To form a past participle of a regular verb, there is a simple and specific formula: add -d or -ed to the base verb. Then, when writing perfect or passive tenses, the past participle will follow “have” or “has.”

Examples of the past participles of regular verbs:

  • Play: played
    • He has played the piano before.  (Present Perfect)
  • Look: looked
    • We had looked everywhere when we finally found her ring. (Past Perfect)
  • Wash: washed
    • We will have washed all their windows by noon. (Future Perfect)

Sometimes, a regular verb’s ending might mean changing the last letter before adding the usual -d or -ed ending: 

  • Carry: carried
    • I have carried heavier loads than this. (Present Perfect)

Words ending in -y are still regular verbs because the past participle is created with the predictable ending of -ed. 

Take note of the past participles above. They are the same as the simple past tense of their verbs: played, looked, washed, carried, hurried, and buried

The Irregularity of Irregular Verbs

Irregular verbs do not follow the rule of adding -d or -ed for the simple past tense or the past participle. Some change their ending, some change a vowel in the middle, and some have no change at all.  

Many times the past participle form is not the same as the simple past form of the verb. There is no simple rule for memorizing irregular verbs because they don’t follow predictable patterns.

When reviewing verb tenses for irregular verbs use a grammar checker or check a dictionary for specific guidelines.

33 Irregular Verbs With Examples

Below are 33 examples of the past tense and past participles of irregular verbs. Notice that a verb's past tense and past participle aren’t always the same.

Irregular Verb Past Tense + Example Past Participle + Example
Be Was/were: I was at work. Been: I have been at work all day.
Bring Brought: He brought flowers! Brought: He has brought flowers!
Build Built: She built a house. Built: She has built many houses.
Catch Caught: He caught a cold. Caught: He has caught a cold before.
Choose Chose: I chose to go out. Chosen: I have chosen to stay in.
Come Came: The guests came early. Come: The guests have come too early!
Cut Cut: He cut the cake. Cut: He has cut the cake already!
Draw Drew: You drew a nice picture! Drawn: You have drawn a nice picture!
Do Did: They did their work. Done: They have done their work already!
Drink Drank: Who drank all the coffee? Drunk: They have drunk all the coffee!
Drive Drove: Our family drove to the store. Driven: We have driven to the store before.
Eat Ate: You ate something, right? Eaten: I have eaten breakfast.
Fall Fell: The leaves fell gracefully. Fallen: The leaves have fallen already.
Freeze Froze: I froze the cake. Frozen: I have frozen the cake for you.
Give Gave: I gave them a present. Given: I have given many presents.
Go Went: She went to the store. Gone: She has gone to the store.
Grow Grew: The tree grew quickly. Grown: The tree has grown tall.
Have Had: I had a great time. Had: I have had a great time.
Hear Heard: We heard the news. Heard: We have heard the news.
Know Knew: He knew the answer. Known: He had known the answer.
Leave Left: She left early. Left: She has left already.
Lose Lost: They lost the game. Lost: They have lost every game.
Make Made: He made a mistake. Made: He has made a mistake.
Meet Met: I met my friend. Met: I have met her before.
Pay Paid: They paid the bill. Paid: They have paid already.
Read Read: She read a book. Read: She has read many books.
Ride Rode: He rode his bike. Ridden: He has ridden a horse before.
Run Ran: They ran fast. Run: They have run a marathon.
Say Said: He said hello. Said: He has said it many times.
See Saw: I saw a bird. Seen: I have seen that movie.
Sit Sat: She sat by the window. Sat: She has sat there all day.
Take Took: He took a picture. Taken: He has taken many pictures.
Write Wrote: She wrote a book. Written: She has written many books.

How to Know If a Verb Is Irregular

There is no easy way to know if a verb is irregular. If a verb’s past tense or past participle ends in -d or -ed, it is safe to assume it is a regular verb. 

Determining irregularity is tricky because there is no consistent pattern or formula. 

It is better to check and ensure your writing is correct and clear. A mistake in forming the past tense or past participle of a verb can distract a reader and detract from the professionalism of your content.

When in doubt, consult a dictionary, use a grammar checker, or review a list of irregular verbs.

Learn more about grammar in our top guides:

Melissa Fanella

Melissa Fanella is a writer, editor, and marketing professional with over 15 years of experience in content and messaging for businesses and nonprofits. Her expertise is in crafting authentic, people-first content that is compelling and engaging for audiences and positioned for business goals.

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Frequently Asked Questions

Why is it important to check for plagiarism?

Tools for conducting a plagiarism check between two documents online are important as it helps to ensure the originality and authenticity of written work. Plagiarism undermines the value of professional and educational institutions, as well as the integrity of the authors who write articles. By checking for plagiarism, you can ensure the work that you produce is original or properly attributed to the original author. This helps prevent the distribution of copied and misrepresented information.

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Text comparison tools work by analyzing and comparing the contents of two or more text documents to find similarities and differences between them. This is typically done by breaking the texts down into smaller units such as sentences or phrases, and then calculating a similarity score based on the number of identical or nearly identical units. The comparison may be based on the exact wording of the text, or it may take into account synonyms and other variations in language. The results of the comparison are usually presented in the form of a report or visual representation, highlighting the similarities and differences between the texts.

String comparison is a fundamental operation in text comparison tools that involves comparing two sequences of characters to determine if they are identical or not. This comparison can be done at the character level or at a higher level, such as the word or sentence level.

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