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 84: More Spelling Patterns and Exceptions
1. Vocabulary Focus
Study the following nouns that end in plural forms of -ys or -ies. Pay close attention to their singular roots.
| Word (Plural) | POS | Definition | Translation | Contextual Example |
|---|---|---|---|---|
| monkeys | noun | small primates often found in trees | những con khỉ | The monkeys at the zoo are very playful. |
| flies | noun | small insects with two wings | những con ruồi | There are many flies in the garden during summer. |
| ladies | noun | polite plural term for women | những quý cô | The ladies in the office organized a party. |
| babies | noun | very young children who cannot walk yet | những đứa trẻ sơ sinh | The babies are sleeping in their cribs. |
| fries | noun | thin strips of potato that have been fried | khoai tây chiên | I like to eat my burger with salty fries. |
| turkeys | noun | large birds often raised for their meat | những con gà tây | The farm has many turkeys ready for the market. |
| holidays | noun | days of celebration or time away from work | những ngày lễ | We always visit our grandparents during the winter holidays. |
| cries | noun | loud sounds made when someone is upset or shouting | tiếng khóc/tiếng la | We heard the cries of the hungry kittens. |
| chimneys | noun | vertical pipes that carry smoke from a fireplace | những ống khói | Most old houses in the village have brick chimneys. |
| journeys | noun | long trips from one place to another | những cuộc hành trình | The explorers wrote books about their long journeys. |
2. Grammar & Spelling Rules
When making a singular noun ending in -y plural, look at the letter right before the -y. This determines which structural spelling path to take.
Rule 1: Consonant + y Pluralization
If a noun ends in a consonant followed by -y, change the -y to -i and add -es.
- The small butterfly lands on the flower → The small butterflies land on the flowers.
- That story was very exciting → Those stories were very exciting.
- The city is very crowded → The cities are very crowded.
Rule 2: Vowel + y Pluralization
If a noun ends in a vowel (a, e, i, o, u) followed by -y, simply add -s to make it plural. Do not drop or change the -y!
- Put the key on the table → Put the keys on the table.
- The boy is playing football → The boys are playing football.
- Today is a sunny day → My holidays are full of sunny days.
3. Practice Exercises
Match the target words on the left with their accurate English structural or semantic descriptions on the right.
- monkeys
- flies
- babies
- holidays
- chimneys
- journeys
- A. Long trips from one place to another.
- B. Vertical structures built to exhaust fireplace smoke.
- C. Very young children who cannot yet walk.
- D. Special days of celebration or extended time away from school/work.
- E. Small playful primates frequently dwelling in tropical trees.
- F. Two-winged insects commonly seen hovering around outdoor spaces.
? Click to see Answer Key & Explanation (Đáp án & Giải thích)
Complete the sentences by writing the correct plural spelling of the word provided in brackets.
- The old village houses have tall brick to let out smoke. (chimney)
- We could hear the loud of the newborns in the delivery room. (cry)
- Several were having tea and discussing politics. (lady)
- The fast food restaurant serves delicious burgers with crispy, golden . (fry)
- Wild were eating seeds near the forest edge. (turkey)
- Our upcoming summer will last for three whole weeks! (holiday)
? Click to see Answer Key & Explanation (Đáp án & Giải thích)
Select the option that represents the correctly spelled plural noun according to context rules.
- The wild ________ jumped through the jungle trees.
- A. monkies
- B. monkeys
- C. monkys
- We need to buy window screens because there are too many ________ outside.
- A. flys
- B. flyes
- C. flies
- The dynamic ________ of the legendary explorers took them across vast desert landscapes.
- A. journeys
- B. journies
- C. journeies
- Both ________ were crying softly before they were finally fed warm milk.
- A. babys
- B. babies
- C. babiess
- The young ________ smiled politely when they walked into the conference room.
- A. ladys
- B. ladies
- C. ladiess
- The holiday menu includes roasted ________ with fresh cranberry sauce.
- A. turkeys
- B. turkies
- C. turkyees
? Click to see Answer Key & Explanation (Đáp án & Giải thích)
Identify whether the underlined plural noun spelling in each sentence is Correct (True) or Incorrect (False).
- The children read fantasy stories before bed every single night. (True / False)
- Santa Claus climbs down the chimnies to deliver beautiful presents. (True / False)
- We ordered two plates of chicken burgers and French frys. (True / False)
- The monkeys stole fruit from the local farmers’ market stands. (True / False)
- Loud cries of joy filled the stadium when our team scored a goal. (True / False)
- Many historic European cities have very narrow cobbled roads. (True / False)
? Click to see Answer Key & Explanation (Đáp án & Giải thích)
Rearrange the words to make grammatical sentences. Look closely at how plural nouns fit into the meaning.
- / during / flies / garden / are / many / there / the / summer / in / .
- / office / the / organized / party / ladies / a / .
- / cribs / sleeping / babies / are / their / in / the / .
- / keys / put / the / table / the / on / please / .
- / winter / visit / holidays / we / relatives / during / .
- / dangerous / were / mountain / their / journeys / very / .
? Click to see Answer Key & Explanation (Đáp án & Giải thích)
Decide whether each word follows Rule A (Consonant + y → -ies) or Rule B (Vowel + y → -ys).
- stories → Follows
- chimneys → Follows
- flies → Follows
- holidays → Follows
- cries → Follows
- turkeys → Follows