Is fearr Gaeilge bhriste ná Béarla cliste / Broken Irish is better than clever English

Irish Proverb

Learning Irish grammar can feel challenging, but with the right approach, it can be manageable. One area you may need to study is the aimsir chaite. This is how you can talk about the past. Here, we'll look at the rules, see common endings, and use the Irish past tense.

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Understanding An Aimsir Chaite

An aimsir chaite is the Irish past tense. Use it to describe actions that have already happened. You'll see this in both spoken and written Gaeilge, and by understanding how it works, you can start forming real sentences. We recommend doing this once you've mastered the present tense in Irish.

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Understanding the past tense helps you describe conversations and events. | Photo by saeed karimi

Definition and Importance

The aimsir chaite describes actions that occurred in the past. It plays a key role in everyday language. Whether you want to form simple statements or tell stories, you'll need it.

Describes actions that happened in the past
Used in both spoken and written Irish
Often involves changes to the beginning of the verb (séimhiú)
Has distinct forms for regular and irregular verbs
Essential for storytelling and everyday conversation

Identifying Verb Types

Before you can start forming past tense in Irish, you need to see how a verb is structured. Regular verbs in Irish have a predictable pattern. Learn how to spot these patterns, and then you can choose the correct form.

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First vs Second Conjugation

In Irish, verbs fall into two main groups. An chéad réimniú includes verbs with one syllable, such as glanor ól. An dara réimniú includes verbs with more than one syllable, such as imir or ceannaigh. Identifying the correct group is essential because it determines the endings you’ll use in the past tense.

Count the number of syllables in the verb
One syllable = An chéad réimniú (first conjugation)
Two or more syllables = An dara réimniú (second conjugation)
Look at the final vowel to determine broad or slender
Broad vowels: a, o, u
Slender vowels: i, e
Slender vowels: i, e

Rules for Conjugating Regular Verbs in An Aimsir Chaite

With a clear set of patterns, once you know what to look for, you'll get it. Regular verbs change in consistent ways. Learn the rules step by step and start using the past tense today.

Initial Consonant Changes

The first thing you'll likely notice is the beginning of the verb. In Irish, the initial letter is modified rather than just the ending. Learn how these work and you'll be able to form the aimsir chaite.

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Séimhiú Made Simple

In the past tense, most Irish verbs add a séimhiú (an “h”) after the first consonant. For example, bris becomes bhris. However, verbs beginning with l, n, r, sc, sm, sp, and st do not take a séimhiú. If a verb begins with a vowel, add d’before it, such as d’ól. Verbs beginning with ftake both d’and a séimhiú, becoming silent (e.g. d’fhág).

Add “h” after most initial consonants
Do not add séimhiú to: l, n, r, sc, sm, sp, st
Add d’ before verbs starting with a vowel
Verbs starting with f take both d’ and séimhiú (d’fhág)
Séimhiú changes pronunciation as well as spelling

Examples of Initial Changes

bris → bhris
glan → ghlan
ól → d’ól
fág → d’fhág
stad → stad (no change due to exception)

Verb Endings Based on Conjugation and Vowel Type

Once you adjust the beginning of the verb, you need to adjust the ending. The endings follow clear patterns. Keep practising, and it'll become quick and intuitive.

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Practising verb forms improves your understanding of past tense endings. | Photo by Compare Fibre
VerbTypeRootPast FormWe Form
glanFirst (broad)glanghlanghlanamar
brisFirst (slender)brisbhrisbhriseamar
imirSecond (slender)imird’imird’imríomar
ceannaighSecond (broad)ceannaighcheannaighcheannaíomar
oscailSecond (broad)oscaild’oscaild’oscalaíomar

First Conjugation Endings

Broad verbs: add -amar (e.g. ghlanamar)
Slender verbs: add -eamar (e.g. bhriseamar)
Usually short, one-syllable verbs
Root often stays clearly visible

Second Conjugation Endings

Broad verbs: add -aíomar (e.g. cheannaíomar)
Slender verbs: add -íomar (e.g. d’imríomar)
Typically longer, multi-syllable verbs
Often include internal vowel changes

Quick Pattern Recognition Tips

Look at the last vowel to decide ending
Match broad with broad, slender with slender
Second conjugation verbs often end in -igh or -ail
Practise common verbs to recognise patterns quickly

Negative and Interrogative Forms

Forming negatives and questions in the past tense is slightly different. Rather than altering the verb ending, Irish uses specific particles before the verb. Get used to using it, and you'll master affirmative, negative, and interrogative in no time.

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Learning past tense rules helps answer common grammar questions. | Photo by Laurin Steffens

Negative Form (Using Níor)

Place níor before the verb
Add séimhiú where applicable
Do not change the verb ending
Example: Níor bhris mé an doras

Interrogative Form (Using Ar)

Place ar before the verb
Add séimhiú where applicable
Keep standard word order after the verb
Example: Ar bhris tú an doras?

Key Differences to Remember

Níor = negative statement
Ar = question
Both trigger séimhiú (with exceptions)
No additional endings required

Here's a quick video explaining the rules for regular verbs.

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Common Irregular Verbs in An Aimsir Chaite

Irregular verbs can be a pain since they don't follow a particular pattern. For these, you have to learn them. Luckily, they're often very common verbs, so they're both useful, and you'll hear them all the time.

VerbPast TenseMeaning
bhíto be
déanrinneto do
faighfuairto get
feicchonaicto see
téighchuaighto go
tartháinigto come
tabhairthugto give
abairdúirtto say
ithd’ithto eat
cloischualato hear
beirrugto catch / bear

List of Irregular Verbs

These are the verbs that don't follow the standard patterns. Make it a priority to learn them early in your language learning journey. Keep a small list and regularly revise it.

In Irish,
90%

of verbs follow regular patterns. It's just the remaining 10% you have to worry about!

Core Irregular Verbs to Learn

→ bhí
déan → rinne
faigh → fuair
feic → chonaic
téigh → chuaigh
tar → tháinig
tabhair → thug
abair → dúirt
ith → d’ith
clois → chuala
beir → rug

Conjugation Examples

Don't just study conjugations in isolation. You can use real sentences to help you remember. It's always good to see language in context, and with repeated exposure, you'll learn these in the same way you learned verbs in English, and after that, you can make your Irish more interesting with the conditional mood.

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Most Common Irregular Verbs to Learn First

Some Irish verbs do not follow standard aimsir chaite endings. The most important ones to learn early are  (to be), déan (to do), téigh (to go), and feic (to see). These verbs appear frequently in everyday Irish and have unique past-tense forms, such as bhí, rinne, chuaigh, and chonaic.

Example Sentences in Aimsir Chaite

Bhí mé sa bhaile inné
Chuaigh siad go dtí an siopa
Rinneamar an obair go tapa
Chonaic sí an madra
Thug sé an leabhar dom

Patterns to Notice in Irregular Verbs

Many forms are completely different from the root
Some still follow séimhiú rules
Frequently used verbs are worth memorising first
Context helps reinforce meaning

Practical Applications and Examples

Now that you have a good idea of the rules, put them into practice. Here are some sentences you can practise with to reinforce the structure and meaning. Now aimsir chaite becomes practical and starts to feel natural.

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Using Irish in real situations helps reinforce past tense structures. | Photo by Surface

Everyday Aimsir Chaite Examples

D’ith mé bricfeasta ar maidin
Níor thuig siad an cheist
Ar chuala tú an scéal?
D’imir muid cluiche inné
Cheannaigh sí leabhar nua

Sentence Types to Practise

Positive statements
Negative sentences
Questions
First person and plural forms
Real-life conversation examples

Common Mistakes to Avoid

Everyone makes mistakes, and when learning a language, mistakes are actually how you'll best learn. However, it's worth studying the common pitfalls to improve your accuracy in Irish. Look at these common mistakes, and it'll be easier to correct them ahead of time than to form bad habits later.

Learn the
5

common mistakes to avoid to improve your Irish.

Common Errors in Aimsir Chaite

Forgetting to add séimhiú
Using the wrong conjugation endings
Mixing broad and slender endings
Forgetting d’ before vowels
Confusing irregular verb forms

How to Avoid These Mistakes

Learn rules in small groups
Practise with common verbs daily
Focus on patterns rather than memorising everything
Revise irregular verbs separately
Use example sentences regularly

Summary of Aimsir Chaite Rules

Tír gan teanga, tír gan anam. A country without a language is a country without a soul.

Pádraig Pearse

Now, you should have a good idea of how aimsir chaite works. Recognise the structure, apply the correct changes, and practise regularly. Consistency is key, and all the time you put into practising will pay off! Now you could move on to the future tense in Irish.

Quick Summary Checklist

Identify verb type (first or second conjugation)
Apply séimhiú or d’ correctly
Choose the correct ending
Use níor for negatives and ar for questions
Learn key irregular verbs early

Of course, if you'd like to take learning Irish further, why not work with a private Irish tutor? You can find Irish tutors across Ireland and around the world on Superprof. With many offering the first session for free, you can even try a few before choosing the perfect one for you!

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Joseph P

Joseph is a French and Spanish to English translator, copywriter, and all-round language enthusiast.