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.
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.

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.
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.
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.
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.
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).
Examples of Initial Changes
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.

| Verb | Type | Root | Past Form | We Form |
|---|---|---|---|---|
| glan | First (broad) | glan | ghlan | ghlanamar |
| bris | First (slender) | bris | bhris | bhriseamar |
| imir | Second (slender) | imir | d’imir | d’imríomar |
| ceannaigh | Second (broad) | ceannaigh | cheannaigh | cheannaíomar |
| oscail | Second (broad) | oscail | d’oscail | d’oscalaíomar |
First Conjugation Endings
Second Conjugation Endings
Quick Pattern Recognition Tips
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.

Negative Form (Using Níor)
Interrogative Form (Using Ar)
Key Differences to Remember
Here's a quick video explaining the rules for regular verbs.
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.
| Verb | Past Tense | Meaning |
|---|---|---|
| bí | bhí | to be |
| déan | rinne | to do |
| faigh | fuair | to get |
| feic | chonaic | to see |
| téigh | chuaigh | to go |
| tar | tháinig | to come |
| tabhair | thug | to give |
| abair | dúirt | to say |
| ith | d’ith | to eat |
| clois | chuala | to hear |
| beir | rug | to 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.
of verbs follow regular patterns. It's just the remaining 10% you have to worry about!
Core Irregular Verbs to Learn
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.
Some Irish verbs do not follow standard aimsir chaite endings. The most important ones to learn early are bí (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
Patterns to Notice in Irregular Verbs
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.

Everyday Aimsir Chaite Examples
Sentence Types to Practise
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.
common mistakes to avoid to improve your Irish.
Common Errors in Aimsir Chaite
How to Avoid These Mistakes
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
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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