English Grammar Notes

This is a hub of middle-level English grammar materials for tutors, students, and parents. In addition to some common grammar topics, it also includes roots (prefix and suffix) helper and online grammar exercises.
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  Morphology: Common Suffixes and Examples
English suffix helps to tell lexical category by deriving new word with affix at a word end, here list common suffixes and examples of noun, adjective, adverb, and verb.
  Morphology: Common Suffixes and Examples  
  Morphology: Common Prefixes and Examples
A prefix derives new word by adding affix before stem of word, here list prefixes with examples by groups: changing lexical category, making antonym, common and hard prefix.
  Morphology: Common Prefixes and Examples  
  Express Gender of People and Animal
Gender nouns are used only for masculine or feminine, meanwhile most of nouns are neuter; here list basic ways to express gender by modifiers, and common gender nouns.
  Express Gender of People and Animal  
  Nouns with Plural Form Only
Some nouns are used in plural only, like things consisting of a pair of stuffs or nouns ending with ing, as well as some nouns are used as plural in special phrases.
  Nouns with Plural Form Only  
  Common Uses of Indefinite and Definite Article
Introduce common uses of indefinite article and definite article: a or an is mainly used before countable singular noun; the is to specify singular or plural objects.
  Common Uses of Indefinite and Definite Article  
  Article Special Uses for Noun Subcategories
Among different noun subcategories, article has some special and separate uses from generic rule, here introduce proper noun, abstract noun, and mass noun's use cases.
  Article Special Uses for Noun Subcategories  
  Zero Article and Omitted Article
A supposed article is omitted, it's called zero article, such as before rank, family member, abstraction of individual noun, date and time, and some other cases.
  Zero Article and Omitted Article  
  Personal Pronoun and Possessive Pronoun
Personal pronoun and possessive pronoun key concepts, use cases, and examples, including subjective case and objective case, possessive adjective and possessive noun, and some special words.
  Personal Pronoun and Possessive Pronoun  
  Reflexive Pronoun and Reciprocal Pronoun
Introduce reflexive pronoun and reciprocal pronoun, lots of examples for object and preposition object, as well as other usages like subject, predictive, and attribute.
  Reflexive Pronoun and Reciprocal Pronoun