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.
One to twelve
| People | On its own | Men | Women |
|---|---|---|---|
| 1 | duine amháin | fear amháin | bean amháin |
| 2 | beirt | beirt fhear | beirt bhan |
| 3 | triúr | triúr fear | triúr ban |
| 4 | ceathrar | ceathrar fear | ceathrar ban |
| 5 | cúigear | cúigear fear | cúigear ban |
| 6 | seisear | seisear fear | seisear ban |
| 7 | seachtar | seachtar fear | seachtar ban |
| 8 | ochtar | ochtar fear | ochtar ban |
| 9 | naonúr | naonúr fear | naonúr ban |
| 10 | deichniúr | deichniúr fear | deichniúr ban |
| 11 | aon duine dhéag | aon fhear déag | aon bhean déag |
| 12 | dháréag | dháréag fear | dháréag 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
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.