Possessive Pronouns

Learn how to express possession in Irish using possessive pronouns like 'mo', 'do', and 'a', and understand their impact on the following noun.

Pronouns Possession Grammar Mutations

In Irish, the words for “my”, “your”, “his”, and so on are technically considered possessive adjectives (aidiachtaí sealbhacha) rather than pronouns. This is because they must always be used with a noun and cannot stand alone. To express concepts like “mine” or “yours” independently, helper words are required.

Forms of Possessive Pronouns

Possessive pronouns come before the noun they modify and often cause a sound change, known as a mutation, at the beginning of that noun. The specific pronoun and the mutation it causes are essential for distinguishing meaning, especially between “his”, “her”, and “their”.

PersonPronounMutationBefore a VowelEmphatic Suffix
1st Sg. (my)moLenitionm'-sa/-se
2nd Sg. (your)doLenitiond'-sa/-se
3rd Sg. (his)aLenitiona-san/-sean
3rd Sg. (her)aNonea h--sa/-se
1st Pl. (our)árEclipsisár n--na/-ne
2nd Pl. (your)bhurEclipsisbhur n--sa/-se
3rd Pl. (their)aEclipsisa n--san/-sean

The forms m' (for mo) and d' (for do) are used before nouns starting with a vowel or fh-.

  • m’athair - my father
  • d’uncail - your uncle
  • m’fhocal - my word

However, the full forms mo and do are typically used before fhl- or fhr-.

  • do fhreagra - your answer

Emphatic Forms

To add emphasis, a suffix is attached to the noun (or a following adjective), not the pronoun itself.

  • mo charrsa - my car
  • mo charr mórsa - my big car

Examples

Here are examples showing how the pronouns and their mutations work in practice.

Before a Consonant

PersonIrish ExampleEmphatic ExampleTranslation
1st Sg.mo charrmo charrsamy car
2nd Sg.do charrdo charrsayour car
3rd Sg. (masc)a charra charrsanhis car
3rd Sg. (fem)a carra carrsaher car
1st Pl.ár gcarrár gcarrnaour car
2nd Pl.bhur gcarrbhur gcarrsayour car
3rd Pl.a gcarra gcarrsantheir car

Before a Vowel

PersonIrish ExampleEmphatic ExampleTranslation
1st Sg.m’athairm’athairsemy father
2nd Sg.d’athaird’athairseyour father
3rd Sg. (masc)a athaira athairseanhis father
3rd Sg. (fem)a hathaira hathairseher father
1st Pl.ár n-athairár n-athairneour father
2nd Pl.bhur n-athairbhur n-athairseyour father
3rd Pl.a n-athaira n-athairseantheir father

Dialectal Differences

Using cuid with Possessive Pronouns

The word cuid (meaning “share” or “part”) is frequently used with possessive pronouns, especially for plural or uncountable nouns. Its use is more common in northern dialects.

Grammatical Form

When cuid is used, the noun that follows it is put into the genitive case.

  • mo chuid oibre - my work (literally “my share of work”)

Alternatively, the preposition de (“of”) can be used.

  • mo chuid den obair - my share of the work

When adding emphasis, the suffix is usually attached to the noun following cuid, not to cuid itself.

  • Seo mo chuid bainnese! - This is my milk!
  • mo chuid airgidse - my money

However, it is also possible to attach it to cuid.

  • mo chuidse airgid - my money

When to Use cuid

The use of cuid is mandatory in all dialects for certain categories:

  • Food: mo chuid ime - my butter
  • Property: mo chuid talaimh - my land
  • Language skills: mo chuid Gaeilge - my Irish
  • Activities: mo chuid oibre - my work

In other cases, cuid is used for:

  1. Plural nouns: mo chuid leabhar - my books.
  2. Uncountable nouns: ár gcuid airgid - our money.

For some nouns, usage varies. Both m'eolas and mo chuid eolais are correct for “my knowledge”.

Expressing ‘Mine’, ‘Yours’, ‘Hers’

Irish has no single words for “mine”, “yours”, etc. Instead, it uses a possessive pronoun with a helper noun like ceann (one/head), cuid (share), or muintir (people).

  • ceann is used for singular, countable items.
  • cuid is used for plural items or uncountable singular items.
  • muintir is used for people.
MeaningSingular (Countable)Plural / UncountableFor People
minemo cheannsamo chuidsemo mhuintirse
yours (sg)do cheannsado chuidsedo mhuintirse
hisa cheannsana chuidseana mhuintirsean
hersa ceannsaa cuidsea muintirse
oursár gceannnaár gcuidneár muintirne
yours (pl)bhur gceannsabhur gcuidsebhur muintirse
theirsa gceannsana gcuidseana muintirsan
  • Sin é mo cheannsa - That is mine. (referring to a single item)
  • Sin é mo chuidse - Those are mine. (referring to multiple items or an amount)

To contrast two items, you can simply repeat the noun.

  • mo leabharsa agus do leabharsa - my book and yours
  • mo chuid leabharsa agus do chuidse - my books and yours

Combinations with Prepositions

Several prepositions that end in a vowel merge with a following possessive pronoun.

de (of)do (to)faoi (under)i (in)le (with)ó (from)trí (through)
mo (my)de modo mofaoi moi mole moó motrí mo
do (your)de dodo dofaoi doi dole doó dotrí do
a (his/her)dádá, áfaoinainalenaónatrína
ár (our)dárdárfaoinárinárlenárónártrínár
bhur (your)de bhurdo bhurfaoi bhurin bhurle bhuró bhurtrí bhur
a (their)dádá, áfaoinainalenaónatrína

Special Cases for Prepositions

The Preposition do (to) When used with a verbal noun to show the object of an action, do + a becomes á.

  • Tá mé á mholadh. - I am praising him. (literally “Am I to-his praising.”)

In other contexts, the standard form dá is used.

  • Thug mé dá chara é. - I gave it to his friend.

The Preposition ar (on) The combined form arna is only used before verbal nouns to mean “after”. In all other cases, ar a is used.

  • arna chur in eagar ag… - edited by… (literally “after its putting in order by…”)
Historical note on the linking -n-

The linking consonant -n- in forms like ina, lena, and óna originally came from prepositions that caused eclipsis, such as i (i n-a > ina). Its use spread by analogy to other vowel-ending prepositions like le and ó. In some older or fixed phrases, especially with a chéile (each other), this -n- is absent: le chéile (together) and ó chéile (from each other).

Grammatical Roles of Possessive Pronouns

Possessive pronouns have several important grammatical functions beyond simple ownership.

  • As the genitive of a personal pronoun:

    • Object of a verbal noun: Tá tú do mo bhualadh. - You are hitting me.
    • Passive meaning: Tá an teach á thógáil. - The house is being built. (literally “Is the house to-its building.”)
    • Reflexive meaning (with féin): Tá tú do do bhualadh féin. - You are hitting yourself.
    • With two-part prepositions: os mo chionn - above me (literally “above my head.”)
  • With verbs of state: With verbs like bí (to be), suí (sit), codladh (sleep), the structure i + possessive pronoun is used.

    • Tá sé ina shuí. - He is sitting. (literally “He is in his sitting.”)
    • Tá sé ina chónaí i mBaile Átha Cliath. - He lives in Dublin.
  • For classification: To state a person’s profession or role (a temporary state), this structure is also used.

    • Tá mé i mo dhochtúir. - I am a doctor.
  • To anticipate a clause: The pronoun a (his) can be used to refer to a following clause, especially with verbs of knowing or seeing.

    • Tá a fhios agam go bhfuil tú anseo. - I know that you are here. (literally “Is its knowledge at-me that…”)
    • Ba mhaith liom a fheiceáil go bhfuil tú sásta. - I would like to see that you are happy.

When Not to Use Possessive Pronouns

There are specific situations where a possessive pronoun is not used, even though it might seem logical.

  • “One of my friends”: Use a prepositional pronoun of do or le, or the phrase de chuid.

    • cara liom - a friend of mine
    • cara dá chuid - a friend of his
  • In direct address (vocative): Use the vocative particle a, which causes lenition.

    • A chara! - My friend!
  • With demonstratives, comparatives, or ordinals: A construction with the preposition ag is used instead.

    • an teach seo agamsa - this house of mine
    • an mac is sine agam - my eldest son
    • an chéad mhac aige - his first son

Alternative Construction for Possession

Instead of a simple possessive pronoun, you can use a structure with the definite article an, the noun, a demonstrative (seo, sin, or úd), and a form of the preposition ag. This is often used for emphasis or with certain nouns.

StructureExampleTranslation
an + noun + seo + agamsaan teach seo agamsathis house of mine
an + noun + seo + agam féinan teach seo agam féinmy own house

This construction is particularly common with nouns like tír (country), baile (town/home), and teach (house).

  • an tír seo againne - our country

It is also used with personal names to show a relationship.

  • Seán seo againne - our Seán