Past Tense in Irish

In Brief

For a regular Irish verb, the affirmative past usually changes the beginning of the verb: bris → bhris (“break → broke”), while a verb beginning with a vowel or f normally takes d’: ól → d’ól, fág → d’fhág. Use níor for a negative and ar for a question: Níor bhris mé é (“I did not break it”), Ar bhris tú é? (“Did you break it?”).

Overview

The Irish past tense, an aimsir chaite, presents an action or event as completed. It is what you need to say what happened yesterday, describe a journey, report a conversation, or ask whether someone did something. This core use is introduced at A2.

English often marks the past at the end of a regular verb with -ed. Irish makes the most visible change at the start. This is usually lenition (séimhiú: a change commonly written by adding h after the first consonant), or the prefix d’ before a vowel or lenited f. The verb normally comes first, followed by the subject: Cheannaigh Máire arán literally follows the order “Bought Máire bread.”

The beginner pattern is compact, but three details matter. The affirmative, negative, and question forms do not all use the same opening; not every initial letter can be lenited; and common irregular verbs have forms that must be learned separately. Master the regular pattern first, then add the irregular verbs as a related topic.

How It Works

1. Start with the verb’s basic form

Irish dictionaries normally list the form also used for a command to one person, such as bris (“break”), glan (“clean”), ceannaigh (“buy”), and éirigh (“rise/get up”). For most regular verbs, the past form keeps this basic shape and changes its beginning.

The two regular conjugations help explain the forms you see:

Pattern	Basic form	Affirmative past	English
First conjugation, often short	bris	bhris	broke
First conjugation	glan	ghlan	cleaned
Longer form retained as a whole	sábháil	shábháil	saved
Second conjugation, often ending in -aigh/-igh	ceannaigh	cheannaigh	bought
Second conjugation	éirigh	d’éirigh	got up

A useful practical rule is: do not invent a new ending when making the ordinary past with a separate pronoun or noun. Keep the learned basic form, then apply the appropriate initial change. In ceannaigh → cheannaigh, for example, -aigh is already part of the basic form.

2. Lenite an initial consonant

With a regular consonant-initial verb, the affirmative past normally uses lenition. In spelling, this places h after one of the consonants that can be lenited.

Initial	Past spelling	Example	Meaning
b	bh	bris → bhris	break → broke
c	ch	cuir → chuir	put → put
d	dh	dún → dhún	close → closed
g	gh	glan → ghlan	clean → cleaned
m	mh	mol → mhol	praise → praised
p	ph	póg → phóg	kiss → kissed
s	sh	sábháil → shábháil	save → saved
t	th	tuig → thuig	understand → understood

The letters l, n, and r do not take an added h, so the written form may look unchanged: léigh → léigh (“read”), nigh → nigh (“washed”), rith → rith (“ran”). Some consonant clusters also resist lenition, especially sc-, sm-, sp-, and st-. Learn such verbs with an example rather than forcing an h into the spelling.

3. Use d’ before a vowel or f

An affirmative past verb beginning with a vowel normally takes d’:

• ól → d’ól — drank
• oscail → d’oscail — opened
• éirigh → d’éirigh — got up

Before f, the f is lenited and d’ is placed before it:

• fág → d’fhág — left
• fan → d’fhan — stayed/waited
• foghlaim → d’fhoghlaim — learned

Lenited fh is silent. The apostrophe is part of the spelling: write d’fhág, not dfhág or d fhág.

4. Put the subject after the verb

The most accessible A2 pattern is analytic: the verb is followed by a separate subject word. An analytic form simply means that person and number are shown by a separate pronoun or noun rather than built into the verb ending.

Function	Pattern	Example
Statement	past verb + subject + rest	Ghlan mé an chistin.
Negative	níor + lenited verb + subject + rest	Níor ghlan mé an chistin.
Question	ar + lenited verb + subject + rest	Ar ghlan tú an chistin?
Negative question	nár + lenited verb + subject + rest	Nár ghlan tú an chistin?

The same ordinary past form works with different separate subjects: Bhris mé, bhris tú, bhris sé, bhris sí, bhris muid, bhris sibh, bhris siad. Unlike English I broke versus he broke, there is no different third-person ending here.

5. Form negatives with níor

Place níor before the verb. It normally causes lenition:

• Níor bhris mé é. — I did not break it.
• Níor cheannaigh siad bainne. — They did not buy milk.
• Níor thuig sí an cheist. — She did not understand the question.

Before a vowel, do not use affirmative d’: Níor ól mé caife, not Níor d’ól mé caife. Before f, use the lenited form without d’: Níor fhág sé, not Níor d’fhág sé.

6. Form questions with ar

Place ar before the verb. It also normally causes lenition:

• Ar bhris tú an ghloine? — Did you break the glass?
• Ar cheannaigh sí é? — Did she buy it?
• Ar fhág siad go luath? — Did they leave early?

Again, affirmative d’ disappears after the particle: Ar ól tú an tae?, not Ar d’ól tú an tae? A particle is a short grammar word that controls the form or purpose of what follows; here, ar marks a past-tense question.

Irish traditionally answers a yes/no question by repeating the verb rather than using a direct equivalent of English yes or no:

• Ar ghlan tú an seomra? — Ghlan. (“Did you clean the room? — Yes.”)
• Ar ghlan tú an seomra? — Níor ghlan. (“Did you clean the room? — No.”)

Examples in Context

Irish	English	Note
Bhris mé an fhuinneog.	I broke the window.	b → bh in the affirmative past
Ghlan siad an teach inné.	They cleaned the house yesterday.	A regular consonant-initial verb
Cheannaigh Máire arán ar maidin.	Máire bought bread in the morning.	The noun subject follows the verb
D’oscail sé an doras.	He opened the door.	d’ before a vowel
D’ól muid cupán tae.	We drank a cup of tea.	d’ before a vowel; analytic muid
D’fhág an bus ag a naoi.	The bus left at nine.	d’ + fh before original f
Níor thuig mé.	I did not understand.	níor plus lenition
Níor ól sí an caife.	She did not drink the coffee.	No d’ after níor
Níor fhoghlaim siad an riail.	They did not learn the rule.	f → fh, but no d’ after níor
Ar cheannaigh tú é?	Did you buy it?	ar introduces the question
Ar oscail sibh an fhuinneog?	Did you open the window?	No d’ after ar
Ar fhág sé a mhála anseo?	Did he leave his bag here?	f → fh after ar
Nár ghlan tú an bord?	Didn’t you clean the table?	Negative question with nár
D’ith sí an dinnéar.	She ate the dinner.	ith is common but irregular; the initial pattern is still visible

Common Mistakes

Adding d’ after níor or ar

• Wrong: Níor d’ól mé é.
• Right: Níor ól mé é.
• Why: d’ belongs to the independent affirmative form. The particles níor and ar replace it.

Forgetting lenition

• Wrong: Bris mé an fhuinneog.
• Right: Bhris mé an fhuinneog.
• Why: A regular consonant-initial verb normally lenites in an affirmative past statement.

Using an English-style did plus a past form

• Wrong: Ar cheannaigh tú cheannaigh é?
• Right: Ar cheannaigh tú é?
• Why: ar marks the question by itself. Irish does not insert a separate equivalent of English did and then repeat the lexical verb.

Putting the subject before the verb

• Wrong: Mé bhris an fhuinneog.
• Right: Bhris mé an fhuinneog.
• Why: Neutral Irish clauses are normally verb-first. English word order is therefore a poor template.

Forcing lenition onto every initial

• Wrong: Lhéigh mé an leabhar.
• Right: Léigh mé an leabhar.
• Why: l cannot be lenited in spelling. The tense can still be clear from context and sentence structure.

Treating every common verb as regular

• Wrong strategy: constructing the past of téigh (“go”) by applying only the regular rule
• Right form: Chuaigh mé abhaile. (“I went home.”)
• Why: Irish has a small, important set of irregular verbs. Learn their past forms separately rather than guessing.

Usage Notes

The simple past normally describes a completed event: D’oscail mé an litir inné (“I opened the letter yesterday”). Time expressions such as inné (“yesterday”), aréir (“last night”), and an tseachtain seo caite (“last week”) often make the intended time explicit, but they are not required when context is clear.

Do not automatically use this tense for English used to. A repeated background habit in the past is usually expressed with the habitual past, an aimsir ghnáthchaite: compare D’ól sé caife (“He drank coffee,” one completed occasion or a bounded event) with D’óladh sé caife gach maidin (“He used to drink coffee every morning”).

You will hear variation in pronouns and personal forms. Bhris muid is a transparent analytic “we broke”; the synthetic form bhriseamar, where the ending itself includes “we,” is also standard. Dialects differ in which alternatives they favour. At A2, consistently using the separate pronouns will let you communicate clearly.

Beyond the Basics / Advanced Use

You do not need to master all of the following yet, but these forms explain what you will encounter in natural Irish.

First, the eleven irregular verbs have special past stems. Familiar high-frequency examples include bhí (“was/were”), chuaigh (“went”), rinne (“did/made”), fuair (“got”), and chonaic (“saw”). Their dependent forms after particles may differ too: Chuaigh sé, but Ní dheachaigh sé and An ndeachaigh sé? This is more than an initial mutation, so each irregular verb needs its own small paradigm.

Second, Irish has an autonomous form, an briathar saor, used when the doer is not named. It often corresponds to an English passive or impersonal statement: Dúnadh an doras can mean “The door was closed.” This is not formed by merely adding a pronoun to the regular pattern.

Third, written and traditional varieties preserve more synthetic forms. Alongside cheannaigh muid, you may see cheannaíomar (“we bought”); alongside a named subject, however, the ordinary third-person-looking form remains natural: Cheannaigh na mic léinn na leabhair (“The students bought the books”). Recognition is more important than producing every regional option at this stage.

Finally, the past tense of the copula is follows a different system: ba/b’, with negative níorbh and question arbh in relevant constructions. Do not apply the regular verbal pattern mechanically to sentences of identity or classification.

Practice Tips

1. Build three-form sets. Take five regular verbs and say an affirmative, negative, and question: Ghlan mé / Níor ghlan mé / Ar ghlan tú? This trains the particle and mutation together.
2. Sort by first sound. Make groups for lenitable consonants, vowels, f, and initials that do not visibly change. Writing d’ól beside níor ól and ar ól makes the contrast memorable.
3. Retell one day. Write six short verb-first sentences about yesterday using inné, ar maidin, and aréir. Then turn two into negatives and two into questions.

Related Concepts

• Prerequisite: Regular Verbs — Present Tense — supplies the basic regular verb patterns and verb-first sentence structure.
• Next step: Irregular Verbs — covers high-frequency past forms such as chuaigh, rinne, and fuair.
• Next step: Future Tense — extends your ability to place events in time.
• Contrast: Habitual Past (Imperfect) — expresses repeated or customary past actions.
• Later development: Autonomous (Impersonal) Form — describes past events without naming the doer.
• Later development: Conditional Mood — uses related mutations but expresses what would happen rather than what did happen.