Lesson 4: Family and Relationships

Overview

Family vocabulary is universal — everyone has some kind of family, and talking about relatives is one of the first things people do when getting to know each other. In Esperanto, the family lexicon beautifully illustrates two of the language's most elegant and productive devices: the -in- suffix, which creates a feminine form from any root, and the ge- prefix, which refers to a mixed-gender group. Instead of memorizing separate words for "father" and "mother," "brother" and "sister," "son" and "daughter," you learn one root and apply a suffix. The entire family tree can be described with a handful of roots and two affixes.

This lesson also introduces the plural ending -j, which is added to all nouns (and adjectives agreeing with them) when referring to more than one. Combined with the possessive adjectives (mia, via, lia, ŝia…), you gain the grammatical tools to talk about your own family and ask about others' — an essential skill for the kind of personal conversation that defines early language learning.

Learning Objectives

By the end of this lesson you can:

• Name immediate and extended family members in both masculine and feminine forms
• Apply the -in- suffix to create feminine variants of family nouns
• Use the ge- prefix to refer to mixed-gender groups of family members
• Form plural nouns by adding -j to any noun
• Use all nine possessive adjectives (mia, via, lia, ŝia, ĝia, nia, via, ilia, onia)

Vocabulary

Esperanto	Type	English	Example sentence
patro	noun	father	Mia patro laboras en Tokio.
patrino	noun	mother	Mia patrino estas kuiristino.
gepatroj	noun (pl.)	parents (mother and father)	Miaj gepatroj loĝas en Parizo.
frato	noun	brother	Mi havas unu fraton.
fratino	noun	sister	Ŝi havas du fratinojn.
gefratoj	noun (pl.)	siblings (brothers and sisters)	Ni estas kvin gefratoj.
filo	noun	son	Ilia filo studas medicine.
filino	noun	daughter	Nia filino nomiĝas Luisa.
gefiloj	noun (pl.)	children (sons and daughters)	Ili havas tri gefilojn.
avo	noun	grandfather	Mia avo rakontas bonajn rakontojn.
avino	noun	grandmother	Avino kuiras bonege.
geavoj	noun (pl.)	grandparents	Miaj geavoj loĝas en la kamparo.
onklo	noun	uncle	Mia onklo estas kuracisto.
onklino	noun	aunt	Onklino Maria estas tre afabla.
kuzo	noun	male cousin	Mi havas kvar kuzojn.
kuzino	noun	female cousin	Mia kuzino loĝas en Brazilo.
nevo	noun	nephew	Mia nevo havas ses jarojn.
nevino	noun	niece	La nevino de Tanaka estas tre bela.
edzo	noun	husband	Ŝia edzo estas muzikisto.
edzino	noun	wife	Lia edzino parolas kvin lingvojn.
geedzoj	noun (pl.)	married couple (husband and wife)	La geedzoj vojaĝas al Japanio.
infano	noun	child (generic, any gender)	La infano ludas en la ĝardeno.
bebo	noun	baby	La bebo dormas.
familio	noun	family	Mia familio estas granda.
parencoj	noun (pl.)	relatives	Mi havas multajn parencojn en Pollando.

Grammar Focus

Pattern 1: The -in- Suffix for Feminine Forms

Structure: masculine (or neutral) noun root + -in- + -o = feminine noun

Esperanto's approach to grammatical gender is elegantly minimal. Nouns are not inherently masculine or feminine as in French or Spanish (where "table" is feminine and "book" is masculine, with no semantic motivation). Instead, Esperanto noun roots are gender-neutral by default, or if they describe people, they may be considered generic/masculine. To specify the female sex, you add the suffix -in- before the noun ending -o. This produces a completely predictable pair for every relevant noun.

This system has a small number of exceptions where the feminine form is the base (e.g., virino = woman, from vir- = man + -in- = female → "female person," and knabo / knabino = boy / girl), but in practice the -in- rule covers the vast majority of cases you will encounter at the A1 level.

Masculine/Neutral	Feminine	English pair
patro	patrino	father / mother
frato	fratino	brother / sister
filo	filino	son / daughter
avo	avino	grandfather / grandmother
onklo	onklino	uncle / aunt
edzo	edzino	husband / wife
instruisto	instruistino	(male) teacher / (female) teacher
amiko	amikino	(male) friend / (female) friend

Common mistake: Treating the root as masculine-specific and omitting -in- when describing women → ❌ "Mia patrino estas bona patro" (My mother is a good father) → ✓ "Mia patrino estas bona patrino" (My mother is a good mother)

Pattern 2: The ge- Prefix for Mixed-Gender Groups

Structure: ge- + plural noun = group containing both males and females

The prefix ge- solves a common problem in many languages: how do you refer to a group that includes both men and women without defaulting to a masculine plural (as French and Spanish do)? In Esperanto, ge- explicitly signals a mixed-gender group. Gepatroj means "parents" (the father and the mother together). Gefratoj means "siblings" (brothers and sisters collectively). Geamikoj means "friends" of both sexes.

The ge- prefix is almost always used with the plural -j ending, because a single individual cannot be "both genders." The only exception is gepatro (gender-neutral parent, theoretical), which is rarely used; in practice you will see gepatroj (parents as a pair or group). Note that ge- words require the plural possessive adjective forms as well.

ge- word	English	Example sentence
gepatroj	parents	Miaj gepatroj estas bonaj homoj.
gefratoj	siblings	Ni estas tri gefratoj.
gefiloj	children (one's own)	Ili havas du gefilojn.
geavoj	grandparents	Miaj geavoj loĝas en Italio.
geedzoj	married couple	La geedzoj festas sian datrevenon.
geamikoj	friends (mixed)	Miaj geamikoj estas tre interesaj.

Common mistake: Using ge- with a singular noun when referring to one person → ❌ "Mia gepatro estas kuracisto" (unusual, implies one parent of both genders) → ✓ "Mia patro/patrino estas kuracisto" for one parent; "Miaj gepatroj" for both

Pattern 3: Plural -j and Possessive Adjectives

Structure: noun + -j = plural; mia, via, lia, ŝia, ĝia, nia, ilia + noun = possession

Every Esperanto noun forms its plural by adding -j (pronounced like English "y"): libro → libroj (books), patro → patroj (fathers), infano → infanoj (children). This is completely regular with no exceptions. When an adjective modifies a plural noun, it also takes -j: bonaj libroj (good books), grandaj familioj (large families).

Possessive adjectives are formed from the pronouns by adding -a: mi → mia (my), vi → via (your), li → lia (his), ŝi → ŝia (her), ĝi → ĝia (its), ni → nia (our), ili → ilia (their). Like all adjectives, they agree in number with the noun they modify: mia libro (my book) → miaj libroj (my books).

Possessive	Example (singular)	Example (plural)
mia (my)	mia patro	miaj gepatroj
via (your)	via fratino	viaj gefratoj
lia (his)	lia filo	liaj gefiloj
ŝia (her)	ŝia avino	ŝiaj geavoj
nia (our)	nia familio	niaj parencoj
ilia (their)	ilia edzo	iliaj geedzoj

Common mistake: Forgetting -j on possessives when the noun is plural → ❌ "mia gepatroj" → ✓ "miaj gepatroj"

Dialogue

Showing family photos

— Ĉu mi povas vidi viajn fotojn? — May I see your photos?

— Kompreneble! Ĉi tiu estas mia familio. Ĉi tie estas miaj gepatroj. — Of course! This is my family. Here are my parents.

— Kiaj afablaj homoj! Kiel nomiĝas via patro? — What friendly people! What is your father's name?

— Li nomiĝas Roberto. Li estas kuracisto. Kaj ĉi tie estas mia patrino, Marta. — His name is Roberto. He is a doctor. And here is my mother, Marta.

— Kaj ĉu vi havas gefratojn? — And do you have siblings?

— Jes, mi havas unu fraton kaj du fratinojn. Ĉi tiu estas mia frato Paulo. Li havas dudek kvin jarojn. — Yes, I have one brother and two sisters. This is my brother Paulo. He is twenty-five years old.

— Kaj la fratinojn? — And the sisters?

— Ĉi tiu estas Ana, ŝi havas dek ok jarojn. Kaj la plej juna estas Sofia, ŝi havas dek kvin jarojn. — This is Ana, she is eighteen. And the youngest is Sofia, she is fifteen.

— Granda familio! Ĉu viaj geavoj ankaŭ loĝas ĉi tie? — A big family! Do your grandparents also live here?

— Ne, miaj geavoj loĝas en la kamparo, proksime de Krakovo. — No, my grandparents live in the countryside, near Kraków.

Practice

Exercise 1: Fill in the blank

Apply the -in- suffix to create the feminine form.

1. patro → ___
2. frato → ___
3. avo → ___
4. onklo → ___
5. edzo → ___

Exercise 2: Translate to Esperanto

1. My parents live in Tokyo.
2. She has three siblings.
3. His grandfather is a doctor.
4. Our children are young.
5. Their aunt speaks Esperanto.

Exercise 3: Questions to answer in Esperanto

1. Kiom da gefratoj vi havas?
2. Kie loĝas viaj gepatroj?
3. Ĉu vi havas kuzojn?

Cultural Note

The -in- suffix system has generated interesting debate within the Esperanto community over the decades. Some speakers argue that having a "default" masculine or neutral root with an explicitly marked feminine form reflects a cultural bias built into the language's 19th-century origins. In response, the community has developed alternative conventions: some modern speakers use iĉ- as an explicit masculine marker (so patriĉo = father, patrino = mother, patro = parent regardless of gender), but this usage is not part of standard Esperanto and remains a matter of personal and community choice.

The ge- prefix, meanwhile, is beloved for its practicality. In languages like English, referring to a mixed group requires circumlocutions ("brothers and sisters," "mother and father"), but in Esperanto a single word — gefratoj, gepatroj — expresses the same idea. When Esperantists talk about their families at international meetings, this efficiency is genuinely appreciated: it is one small example of how a planned language can improve on the ambiguities and asymmetries found in natural languages.