Unit 1: Complete and Incomplete Sentences
Unit 2: Types of Sentences
Unit 3: Simple and Complete Subjects and Predicates
Unit 4: Common Nouns
Unit 5: Common and Proper Nouns
Unit 6: Plural Nouns
Unit 7: More Plural Nouns
Unit 8: Singular Possessive Nouns
Unit 9: Plural Possessive Nouns
Unit 10: Subject and Object Pronouns
Unit 11: Complete Sentences and End Punctuation Review
Unit 12: Common and Proper Nouns Review
Unit 13: Singular and Plural Nouns Review
Unit 14: Possessive Nouns Review
Unit 15: Subject and Object Pronouns Review
Unit 16: Action Verbs
Unit 17: Linking Verbs
Unit 18: Helping Verbs
Unit 19: Past, Present, and Future Tense Verbs
Unit 20: Perfect Tense Verbs
Unit 21: Irregular Verbs
Unit 22: Progressive Verbs
Unit 23: Transitive Verbs
Unit 24: Intransitive Verbs
Unit 25: Subject and Verb Agreement
Unit 26: Action Verbs Review
Unit 27: Linking and Helping Verbs Review
Unit 28: Verb Tenses Review
Unit 29: Verb Forms Review
Unit 30: Subject and Verb Agreement Review
Unit 31: Adjectives
Unit 32: Comparative and Superlative Adjectives
Unit 33: Irregular Comparative and Superlative Adjectives
Unit 34: Adverbs
Unit 35: More Adverbs
Unit 36: Adverbs without -ly
Unit 37: Synonyms
Unit 38: Antonyms
Unit 39: Homophones
Unit 40: Adjectives Review
Unit 41: Comparative and Superlative Adjectives Review
Unit 42: Adverbs Review
Unit 43: Synonyms and Antonyms Review
Unit 44: Homophones Review
Unit 45: Conjunctions
Unit 46: Compound Subjects
Unit 47: Compound Predicates
Unit 48: Prepositions and Prepositional Phrases
Unit 49: Dependent Clauses
Unit 50: Independent Clauses
Unit 51: Commas
Unit 52: Compound Sentences
Unit 53: Complex Sentences
Unit 54: Compound-Complex Sentences
Unit 55: Conjunctions Review
Unit 56: Compound Subjects and Compound Predicates Review
Unit 57: Prepositions and Prepositional Phrases Review
Unit 58: Dependent and Independent Clauses Review
Unit 59: Compound, Complex, and Compound-Complex Sentences Review
Unit 60: Appositives
Unit 61: More Uses for Commas
Unit 62: Quotation Marks
Unit 63: Contractions
Unit 64: Abbreviations
Unit 65: Semicolons
Unit 66: Colons
Unit 67: Word Usage: Sit or Set
Unit 68: Word Usage: Lie or Lay
Unit 69: Word Usage: Your or You’re
Unit 70: Appositives Review
Unit 71: Commas and Quotations Review
Unit 72: Contractions and Abbreviations Review
Unit 73: Colons and Semicolons Review
Unit 74: Word Usage Review
Unit 75: Interjections
Unit 76: Articles
Unit 77: Prefixes
Unit 78: Suffixes
Unit 79: More Prefixes
Unit 80: More Suffixes
Unit 81: Greek Root Words
Unit 82: Latin Root Words
Unit 83: Spelling Patterns and Exceptions
Unit 84: More Spelling Patterns and Exceptions
Unit 85: Negatives
Unit 86: Interjections and Articles Review
Unit 88: Suffixes Review
Unit 89: Greek and Latin Root Words Review
Unit 91: Negatives Review
Unit 92: Review of the Eight Parts of Speech
Unit 93: Applying Punctuation Knowledge
Unit 94: Applying Punctuation and Word Usage Knowledge
Unit 96: Adjectives, Adverbs, and Verb Tenses Review
Unit 97: Sentence Structure Review: Simple and Compound Sentences
Unit 98: Dependent Clauses and Sentence Structure
Unit 21: Irregular Verbs
Grammar Theory: What are Irregular Verbs?
A verb shows an action or a state of being. Verbs change form to show when something happens (the tense). Regular verbs follow a simple rule: you add -ed or -d to thepresent form to make the past tense and the past participle (e.g., walk becomes walked). However, irregular verbs do not follow this rule. They do not end in -ed in the past or past participle forms. You must memorize their special spellings.
Every verb has three main parts you need to know:
- Present (Base Form): Used for actions happening now or regularly (e.g., I eat lunch.).
- Past Simple: Used for actions completed in the past (e.g., I ate lunch yesterday.).
- Past Participle: Used withhelping verbs like have, has, or had (e.g., I have eaten lunch.).
Advanced Pattern Notes
While irregular verbs don’t follow the -ed rule, they sometimes follow patterns that can help you remember them:
- No Change: Some verbs stay the same in all three forms (e.g., spread – spread – spread).
- Vowel Change: The vowel sound changes from present to past(e.g., get – got, sit – sat).
- -EN Ending: The past participle often ends in -en (e.g., break – broken, give – given).
Exercise 1: Regular vs. Irregular Sorting
Look at the verbs below. Write R if the verb is Regular (adds -ed) and I if it is Irregular.
1. walk ______
2. eat ______
3. play ______
4. write ______
2. eat ______
3. play ______
4. write ______
5. break ______
6. jump ______
7. give ______
8. paint ______
6. jump ______
7. give ______
8. paint ______
Exercise 2: Complete the Table
Fill in the missing forms for these target vocabulary verbs.Remember the patterns discussed above.
| Present | Past | Past Participle |
|---|---|---|
| 1. eat | ________ | eaten |
| 2. ________ | bit | bitten |
| 3. forget | forgot | ________ |
| 4. break | ________ | broken |
| 5. write | wrote | ________ |
| 6. bleed | bled | ________ |
| 7. undo | ________ | undone |
| 8. spread | spread | ________ |
Exercise 3: Matching Pairs
Match the present tense verb on the left with its correct past tense form on the right.
1. feel
2. give
3. become
4. choose
5. drive
6. fall
7. fly
8. know
2. give
3. become
4. choose
5. drive
6. fall
7. fly
8. know
A. drove
B. felt
C. flew
D. gave
E. fell
F. became
G. knew
H. chose
B. felt
C. flew
D. gave
E. fell
F. became
G. knew
H. chose
Exercise 4: Simple Past Selection
Circle the correct past tense verb to complete each sentence.
- Yesterday, I (eat / ate) an apple for a snack.
- The spider (bite / bit) the superhero in the movie.
- She (forgot / forget) to bring her homework to class.
- The glass (break / broke) when it hit the floor.
- He (write / wrote) a long letter to his grandmother.
- The nurse stopped the cut when it (bleed / bled).
- I (undo / undid) the knot in my shoelaces.
- We (spread / spreaded) the picnic blanket on the grass.
Exercise 5: Identifying Helping Verbs
Underline the helping verb (have, has, or had) and circle the irregular past participle in each sentence.
- We have eaten all the cookies in the jar.
- She has given her old toys to charity.
- He had felt sick before the test started.
- They have written three pages of the story.
- The news has spread quickly through the school.
- I have not forgotten your birthday.
- The dog has bitten the mail carrier twice.
- We had undone all the hard work by mistake.
Exercise 6: True or False
Decide if the verb form used is correct. Write T for True or F for False.
- I have broke the vase. ______
- She wrote a poem yesterday. ______
- We have ate lunch already. ______
- He felt happy about thenews. ______
- They have give me a present. ______
- The butter spread easily on the toast. ______
- I have forgotten my password. ______
- The mosquito bit me on the arm.______
