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How to Count People in Irish: beirt, triúr, ceathrar

Irish keeps a separate set of numbers just for people, from two to twelve. You never say “dhá dhuine” for two people; it is beirt. Three people is triúr, four is ceathrar. On their own they already mean “two people”, “three people”.

The pattern

The number comes first and the people come after it in the genitive plural (fear men, ban women, páistí children). Beirt also adds a séimhiú, but not to d, t or s: beirt deartháireacha (two brothers), beirt saighdiúirí (two soldiers). The rest add nothing.

beirttwo people
+
firmen
=
beirt fheartwo men
beirttwo people
+
mnáwomen
=
beirt bhantwo women
triúrthree people
+
firmen
=
triúr fearthree men
ceathrarfour people
+
páistíchildren
=
ceathrar páistífour children

One to twelve

PeopleOn its ownMenWomen
1duine amháinfear amháinbean amháin
2beirtbeirt fhearbeirt bhan
3triúrtriúr feartriúr ban
4ceathrarceathrar fearceathrar ban
5cúigearcúigear fearcúigear ban
6seisearseisear fearseisear ban
7seachtarseachtar fearseachtar ban
8ochtarochtar fearochtar ban
9naonúrnaonúr fearnaonúr ban
10deichniúrdeichniúr feardeichniúr ban
11aon duine dhéagaon fhear déagaon bhean déag
12dháréagdháréag feardháréag ban
From 13 up
Use the ordinary numbers with duine: trí dhuine dhéag (13 people), fiche duine (20 people), céad duine (100 people).
“Four of us”
Add the pronoun form of ag: ceathrar againn (four of us), beirt agaibh (two of you), triúr acu (three of them).

In a sentence

Tá beirt pháistí agam.
I have two children.
Bhí triúr fear ag an doras.
There were three men at the door.
Tá ceathrar againn sa teach.
There are four of us in the house.
Tá seisear sa teaghlach.
There are six in the family.
Chonaic mé beirt bhan ag siúl.
I saw two women walking.
Bhí deichniúr ag an gcruinniú.
There were ten people at the meeting.

More numbers

Counting people in Irish: the questions people ask

How do you say “two people” in Irish?

beirt. It is one word and it already means two people: Bhí beirt ann, there were two people there. Two men is beirt fhear, two women beirt bhan, two children beirt pháistí.

How do you say “three people” and “three men” in Irish?

triúr and triúr fear. From triúr up the people counted go into the genitive plural with no séimhiú: triúr fear, ceathrar ban, cúigear páistí.

Why does Irish have special numbers for people?

The personal numbers (beirt, triúr, ceathrar…) work like nouns meaning “a group of two, three, four”. That is why what follows them is in the genitive plural, as after any noun: triúr fear is literally “a threesome of men”.

How do you say “there are four of us” in Irish?

Tá ceathrar againn ann. The pronoun forms of ag carry the “of us, of you, of them”: ceathrar againn, beirt agaibh, triúr acu.

How do you count people above twelve in Irish?

With the ordinary numbers and duine: trí dhuine dhéag (13 people), fiche duine (20 people), céad duine (100 people). Twelve itself is dháréag.