Autonomous (Impersonal) Form in Irish

Overview

Irish has a special verb form called the briathar saor (autonomous or free verb) that functions similarly to the passive voice in English. It describes an action without specifying who performs it: Labhraítear Gaeilge anseo (Irish is spoken here), Dúnadh an doras (The door was closed). The focus is on the action and what it affects, not on who does it.

Every tense in Irish has an autonomous form, created by adding specific endings to the verb root. This is not technically a passive voice — Irish has no true passive — but rather an impersonal active construction where the subject is unspecified. It translates naturally as passive in English and is used in signs, regulations, news reports, and everyday speech.

The autonomous form is particularly common in formal and written Irish, but it also appears frequently in conversation for general statements about what happens or what was done. Mastering it gives you a powerful tool for describing situations without needing to name an agent.

How It Works

Autonomous Endings by Tense

Tense	1st Conjugation	2nd Conjugation
Present	-tar / -tear	-aítear / -ítear
Past	-adh / -eadh	-aíodh / -íodh
Future	-far / -fear	-ófar / -eofar
Conditional	-faí / -fí	-ófaí / -eofaí
Habitual past	-taí / -tí	-aítí / -ítí

Present Autonomous

Root	Autonomous	English
ól	óltar	is drunk
labhair	labhraítear	is spoken
déan	déantar	is done/made
ceannaigh	ceannaítear	is bought

Past Autonomous

Root	Autonomous	English
dún	dúnadh	was closed
bris	briseadh	was broken
tóg	tógadh	was built
ceannaigh	ceannaíodh	was bought

Future Autonomous

Root	Autonomous	English
déan	déanfar	will be done
ól	ólfar	will be drunk
ceannaigh	ceannófar	will be bought
oscail	osclófar	will be opened

Examples in Context

Irish	English	Note
Labhraítear Gaeilge anseo.	Irish is spoken here.	Present autonomous
Dúnadh an doras.	The door was closed.	Past autonomous
Déanfar é amárach.	It will be done tomorrow.	Future autonomous
Óltar a lán tae in Éirinn.	A lot of tea is drunk in Ireland.	General statement
Tógadh an teach i 1920.	The house was built in 1920.	Historical fact
Ní labhraítear Gaeilge ansin.	Irish is not spoken there.	Negative present
Ceannófar an bia ar maidin.	The food will be bought in the morning.	Future plan
Briseadh an fhuinneog aréir.	The window was broken last night.	Past event
Cuirtear fáilte roimh chách.	Everyone is welcomed.	Formal sign
D'ólfaí fíon leis.	Wine would be drunk with it.	Conditional autonomous

Common Mistakes

Confusing the past autonomous with the habitual past

• Wrong: Interpreting Dúnadh an doras as "The door used to be closed"
• Right: Dúnadh an doras = The door was closed (single event).
• Why: The past autonomous (-adh/-eadh) looks similar to the habitual past but functions differently. The habitual past has a specified subject; the autonomous does not.

Adding a subject pronoun

• Wrong: Dúnadh sé an doras
• Right: Dúnadh an doras.
• Why: The autonomous form has no stated subject — that is its defining feature. Adding a pronoun creates a normal past tense sentence.

Using the wrong ending for the conjugation class

• Wrong: Ceannatar (mixing 1st conj. ending with 2nd conj. verb)
• Right: Ceannaítear.
• Why: Second conjugation verbs use -aítear/-ítear in the present autonomous, not -tar/-tear.

Usage Notes

The autonomous form is especially common in official contexts: legal documents, signs, news broadcasts, and formal writing. You will see it on signs like Labhraítear Gaeilge anseo and in news reports: Gabhadh beirt (Two people were arrested). In everyday conversation, it appears in generalizations: Óltar a lán tae in Éirinn (A lot of tea is drunk in Ireland). In some dialects, particularly Munster, the autonomous forms are used more frequently than in others.

Practice Tips

1. Look for examples of the autonomous form on Irish signs, menus, and official documents. Translate them and identify the tense.
2. Rewrite five active sentences in the autonomous form: Dhún Seán an doras → Dúnadh an doras.

Related Concepts

• Past Tense — the active past tense that contrasts with the autonomous