Modern English, unlike its Old English predecessor, has simplified its case system significantly. Today, we primarily distinguish between the common case and the genitive case. Understanding genitive cases is crucial for clarity and correct usage in writing and speaking. This guide will break down the two main types of genitives, their formation, usage, meanings, and special constructions, providing a comprehensive overview for students.

Exploring Genitive Cases in Modern English

In Modern English, nouns primarily exist in a common case, meaning they have no special ending. However, the genitive case allows us to show possession, relationship, or other specific connections between nouns. There are two primary forms of the genitive case:

The -'s genitive (also known as the inflected genitive)
The of-genitive

The -'s Genitive: Formation and Usage

The -'s genitive is formed by adding an inflectional morpheme, which is typically an apostrophe followed by an -s, to the singular form of a noun. For most plural nouns, where an -s ending is already present, only an apostrophe is added (e.g., the students' books). However, some irregular plural forms still use the -'s (e.g., the men's books).

Special Cases for -'s Genitive Formation:

Greek Names Ending in -s: Names of more than one syllable ending in -s take a zero genitive, meaning only an apostrophe is added without an additional -s (e.g., Euripides' plays, Socrates' bust).
Fixed Expressions: Phrases like "for goodness' sake" or "for conscience' sake" also use the zero genitive.
Famous Names Ending in -s: For some famous names, we typically add an apostrophe after the -s (e.g., Keats' works, Yeats' poetry).

Nouns That Take the -'s Genitive:

The inflected genitive is primarily used with animate nouns, but also extends to certain inanimate categories:

Personal Names: George Washington's statue
Personal Nouns: the boy's shirt, my sister-in-law's pen
Collective Nouns: the government's conviction, the nation's social security
Higher Animals: the horse's tail, the lion's hunger
Some Lower Animals: a bee's sting

Inanimate Nouns with -'s Genitive:

Geographical & Institutional Names: Europe's history, Slovakia's future, the University's plans
Temporal Nouns: a moment's hesitation, a week's holiday, today's meeting
Money's Worth: a dollar's worth
Nouns of Special Interest to Human Activity: the mind's general development, the game's history, science's influence
Vehicles: the car's wheel, the ship's captain, the plane's engines

The "Of" Genitive: When to Use It

The "of-genitive" construction is typically used when referring to inanimate things or in situations where the -'s genitive might sound awkward. It's often formed by placing "of" between the two nouns.

Common Uses of the Of-Genitive:

Inanimate Things: the windows of the house
Parts of Things: the bottom of the box, the top of the table, the side of the mountain
Abstract Reference: the cost of living, the pursuit of happiness
Titles: the Duke of Kent, the King of England
Modified Noun: When the noun in the "of-genitive" is modified by a phrase or clause (e.g., Can you pass me the book of the girl behind you?).
Instead of Infinitive and Object: To turn a verb-object construction into a noun phrase (e.g., to explain grammar becomes explanation of grammar).

Understanding Genitive Meanings

The genitive case can convey various meanings beyond simple possession. These meanings can be understood by comparing the genitive phrase to a fuller sentence or phrasal analogue.

Common Genitive Meanings and Analogues

Possessive Genitive: Shows ownership or belonging.
Susan's lipstick (Susan has a lipstick)
Subjective Genitive: The noun in the genitive performs the action.
the student's application (The student applied...)
my mother's arrival (My mother arrived.)
Objective Genitive: The noun in the genitive is the object of an action.
the prisoner's release (...released the prisoner)
Genitive of Origin: The noun in the genitive is the source or creator.
the traveler's story (The traveler wrote a story.)
Descriptive Genitive: Describes the type or purpose of something.
a doctor's degree (a doctorate)
Partitive Genitive: Indicates a part or duration.
three months' leave (the leave lasted three months)

Genitive with Ellipses: Omitting the Noun

Sometimes, the noun modified by the -'s genitive can be omitted if the context makes its identity clear. This avoids repetition and makes sentences more concise.

Contextual Clarity: My car is newer than John's. (meaning John's car)
Referring to Places: Used when referring to homes, shops, businesses, or doctors' offices.
I'll be at Bill's. (Bill's house/place)
Let's go to the chemist's. (chemist's shop)
at the hairdresser's, at the dentist's

It's worth noting that with well-known stores (e.g., Woolworths, Harrods), the apostrophe before the -s is sometimes optional in modern usage.

The Double Genitive: Combining Forms

The double genitive combines both the "of-genitive" and the "-'s genitive" in a single construction. This is typically used when the noun with the -'s genitive is both definite and personal.

Example: A friend of the doctor's has arrived. (meaning one of the doctor's friends)

This construction often arises because we generally place only one determiner (like that or this) in front of a noun. For instance, you would say that silly cousin of my friend's rather than that my friend's silly cousin.

Choosing Between -'s Genitive and Noun as Modifier

Deciding between the -'s genitive and simply using a noun as a modifier (e.g., cow's milk vs. goat cheese) can be tricky. The choice often depends on specific nuances of meaning and common usage.

Products from Animals

-'s Genitive: Used for products derived from living animals.
cow's milk, lamb's wool, sheep's wool, a bird's egg
Noun as Modifier: Used when the animal is killed to provide the product.
calf-skin, chamois leather, fox fur, chicken soup, a lamb chop
Exceptions/Variations: a goat's cheese or goat cheese can both be used.
Parts of Animals: Generally, the -'s genitive is used for body parts.
a sheep's heart, a cow's horn, a frog's leg

General vs. Specific Reference

Noun as Modifier: Used for general meaning, where the first noun classifies the second.
dog meat (a kind of meat), a sheep dog, a mountain plant
-'s Genitive: Used for specific reference.
the dog's meat (meat for a particular dog)

Understanding the Relationship Between Nouns

The relationship between the first and second noun differs significantly between the -'s genitive structure and the noun as modifier structure.

The -'s Genitive Structure (a's b)

In this structure, the first noun (a) often acts like a subject, and the second noun (b) can be like a verb or an object.

a has b: my mother's headache, the earth's gravity, a child's toy, the ship's funnel, Eve's bag, lion's tail
a does something to/with b: the girl's story, the crowd's sympathy, a spider's web
a is the user of b: a women's college, men's lavatory, my brother's socks
a does b (a is subject, b is verb): the prisoner's escape, the volcano's eruption, the train's arrival, a baby's smile

Noun as Modifier Structure (a b)

When two nouns are joined as a modifier, the second word (b) often acts more like a subject, and the first word (a) is like an object, or provides context for b.

b does something to a: a book case (a case that holds books)
b produces a: glass manufacture (manufacture that produces glass)
b goes to a: the airport bus (the bus that goes to the airport)
b is in/from/for/with/about a: a garden chair (a chair in or for the garden)

FAQ: Genitive Cases in Modern English

What are the two main genitive cases in Modern English?

Modern English primarily uses two genitive cases: the -'s genitive (inflected genitive) and the "of-genitive" construction. Both serve to show relationships between nouns, but are used in different contexts and with different types of nouns.

When should I use the -'s genitive versus the "of-genitive"?

The -'s genitive is generally preferred for animate nouns (people, higher animals) and certain inanimate categories like temporal nouns, geographical names, and vehicles. The "of-genitive" is typically used for inanimate objects, parts of things, abstract concepts, titles, or when the noun is modified by a phrase.

Can I omit the noun after an -'s genitive?

Yes, the noun modified by the -'s genitive can be omitted if its identity is clear from the context. This is common when comparing items (e.g., "My car is newer than John's") or when referring to familiar places like homes or businesses (e.g., "I'm going to the doctor's").

What is the double genitive?

The double genitive is a construction that combines both the "of-genitive" and the -'s genitive, such as "a friend of the doctor's." It is used when the noun with the -'s genitive is both definite and personal, often to avoid awkward phrasing with determiners.

How does the genitive case relate to products from animals?

For products from living animals (e.g., milk, wool, eggs), the -'s genitive is usually used (e.g., "cow's milk"). However, if the animal is killed for the product (e.g., meat, leather), a noun as modifier is typically used (e.g., "chicken soup," "calf-skin").

Genitive Cases in Modern English