Irish Gaelic Prepositions: How ag, le and ar Work

Irish Gaelic is famous for doing something English rarely does: it fuses a preposition and a pronoun into a single word. Where English says “on me”, “at him” or “with her”, Irish uses one compact word such as orm, aige or léi. These fused forms are called prepositional pronouns, and they are one of the fastest ways to sound fluent, because they appear in almost every sentence about having, giving, talking and location.

If you have studied any Irish, you have already met the most important one: ag (at). The phrase “I have” is literally “there is at me”, tá agam. Master the system behind that form and a huge part of daily Irish opens up. This guide explains how prepositions combine with pronouns, gives the full tables for the verbs you will use most, and offers a drill plan so the forms stick.

What a prepositional pronoun is and why Irish relies on it

A simple preposition like ag (at), le (with), ar (on) or i (in) changes meaning depending on the person. Irish does not bolt the preposition onto the pronoun as separate words the way English can. Instead it merges them, and the merged form often looks nothing like the two parts you might expect.

The practical consequence is that you cannot always translate word by word. If you learn that le means “with” and mé means “me”, you still need to learn that “with me” is liom, not “le mé”. This is the single biggest reason Irish learners feel stuck in the first weeks: they keep trying to assemble separate words, when native speakers reach for memorized fused forms.

The good news is that the system is small and regular enough to learn in a few sessions. There are roughly ten prepositions you will use constantly, and each follows the same pattern across persons: first person singular, second person singular, third person masculine and feminine singular, then plural forms. Once one table makes sense, the others feel familiar.

Tá agam and the verb “to have”

The most useful pattern in the whole language is the preposition ag combined with bí (to be) to express possession. Irish does not have a verb “to have”. It says that something “is at” a person.

• Tá carr agam. (I have a car, literally “a car is at me”)
• Tá airgead agat. (You have money)
• Tá teach aige. (He has a house)
• Tá leabhar aici. (She has a book)
• Tá páistí againn. (We have children)
• Tá ceist agaibh. (You plural have a question)
• Tá freagra acu. (They have an answer)

The fused forms of ag are: agam, agat, aige, aici, againn, agaibh, acu. Notice that the third person forms, aige and aici, drop the g and become very short. That is typical of these words and worth memorizing early, because aige and aici are among the most frequent words in spoken Irish.

To say “I do not have”, put the negative before the verb: Níl carr agam (there is no car at me). The past tense uses bhí instead of tá, so Bhí airgead agam means “I had money” and Ní raibh airgead agam means “I did not have money”. Every tense of “to have” is simply a tense of bí plus agam and friends.

The full table of ar (on)

The preposition ar appears in expressions of ability, urgency and obligation, so it is worth learning completely. Its forms are: orm, ort, air, uirthi, orainn, oraibh, orthu.

• Tá ocras orm. (I am hungry, literally “hunger is on me”)
• Tá brón orm. (I am sorry)
• Caithfidh mé é a dhéanamh, tá sé orm. (I have to do it)

The phrase “I need” often uses the verbal noun construction with ar: Tá gá agam le (I have a need with) or feidhm ar. But the everyday feelings of hunger, thirst, anger and tiredness all sit on the preposition ar in modern Irish.

Le (with), do (for) and i (in)

Le, meaning “with” or “by”, carries the sense of owning, accompanying and using. Its forms are liom, leat, leis, léi, linn, libh, leo. You will hear the third person masculine leis constantly, as in Tá sé leis (it is with him) or the filler “let’s go” exclamation Maith go leor, which literally means “good enough”.

Do, meaning “to” or “for”, gives dom, duit, dó, di, dúinn, daoibh, dóibh. It appears in giving (Tabhair dom é, “give it to me”) and in many phrases where English would say “to me it seems”. This is the preposition you need for likes and for possession of a different kind, such as “I have” in the sense of something being owed to me.

I, meaning “in”, is irregular early in the tables: ionam, ionat, ann, inti, ionainn, ionaibh, iontu. The masculine form ann is everywhere, from Tá sé ann (he is there / it exists) to the commonly heard filler Tá an ceart agat, go bhfuil an rud sin ann (conversational filler). Learning ann early pays off because it appears in “to be in existence” and “there is” contexts.

How gender changes the third person

A key detail is that the third person singular has two forms, one masculine and one feminine: aige/aici, air/uirthi, leis/léi, dó/di, ann/inti. You choose based on the gender of the noun or person you are referring back to, not your own gender. If you are talking about fear (man, masculine), you use air and aige; if you are talking about bean (woman, feminine), you use uirthi and aici.

Beginners often confuse this with an ending change or a mistake, but it is simply grammatical gender in action. It is the same distinction that shows up across Irish grammar, which is why reviews of Irish grammar for beginners emphasize gender from day one. Make the masculine and feminine third-person forms a single study block and the tables feel half the size.

Building a daily drill with spaced repetition

Because these forms are memorized whole words rather than assembled by rule, they respond brilliantly to spaced repetition. The best drill is to take one preposition per week and run a flashcard deck that presents the English pronoun (“on her”) and asks for the Irish form (uirthi), then runs the reverse direction.

A ten-minute daily session is enough. Say each form out loud, because the vowels distinguish otherwise identical-looking words, and reading silently trains your eye without training your ear. Record yourself saying the full set for ar, then for le, and compare. Over two weeks you will move the whole series from working memory into long-term recall.

Common mistakes to avoid

Three errors appear again and again. The first is treating “I have” as a possessive verb and saying “Tá mé carr” instead of “Tá carr agam”. Always anchor possession to ag with the neutral word order: subject first, then agam.

The second is mixing up the personal forms, especially air and uirthi or aige and aici, when the gender of the referent is feminine. If you are hungry, Tá ocras orm is correct regardless of your gender; the form reflects the noun feeling the hunger, which in these idiomatic phrases is always the person, so orm is right for a woman too.

The third is forgetting that these fused words carry their own vowel changes. Orm is not ar plus mé; it is a distinct word. Accept that the two parts will not always resemble each other, and your brain will stop trying to build them and start recalling them, which is exactly what fluent speakers do.

Questions and negatives with prepositional pronouns

Prepositional pronouns sit comfortably inside questions and negative statements, and the pattern is the same as for any Irish sentence. To ask a question you put the question form of the verb at the front: An bhfuil ocras ort? (Are you hungry?). To negate, use the negative form: Níl ocras orm (I am not hungry). The prepositional pronoun follows the verb unchanged, so once you know the form, it works in statements, answers and questions alike.

When a prepositional pronoun follows a verbal noun, as in the common “I want” constructions, it keeps its place near the object. Tá mé ag cuardach an leabhair (I am looking for the book) uses ag before the verbal noun, while le, do and ar appear in their own patterns. The key habit is to learn each idiom as a pair: the feeling or action and the preposition it rides on, such as tá brón orm, tá eagla orm, is maith liom (I like) and is cuma liom (I do not care).

Dialect differences in the tables

The prepositional pronoun tables differ slightly across the three main dialects, Munster, Connacht and Ulster. Most forms are shared, but pronunciation and a few shapes vary. In Munster Irish, for example, the first person plural of le is often sounded as linn, while in Connacht you will hear againn in ag patterns more strongly. The explainer on Irish dialects shows how these local flavours affect everyday speech, including the prepositions.

None of these differences should worry a learner. Choose one dialect, learn its full set of fused forms, and you will be understood everywhere. When you meet a speaker from another region, treat the variation as something to enjoy rather than a correction. Learners who panic about dialect differences waste weeks, while learners who pick one standard set and keep going reach fluency far sooner.

Ten everyday phrases built on prepositional pronouns

To see how little infrastructure you actually need, here are ten common sentences, all resting on the forms above:

• Tá carr agam. (I have a car.)
• An bhfuil peann agat? (Do you have a pen?)
• Tá ocras orm. (I am hungry.)
• Tá athas orm. (I am happy / glad.)
• Tá brón orm. (I am sorry.)
• Is maith liom tae. (I like tea.)
• Tabhair dom é. (Give it to me.)
• Tá sé leis. (It is with him.)
• Tá an leabhar ar an mbord. (The book is on the table.)
• Níl aon rud orm. (Nothing is wrong with me.)

Read them aloud a few times and notice that every verb stays the same; only the prepositional pronoun changes with the person. That is the whole trick, and it is why mastering one table unlocks dozens of sentences.

Putting it together

Prepositional pronouns are the backbone of everyday Irish. Master ag for possession, then add ar for feelings and obligation, le for accompaniment, do for giving, and i for location. Recognise that the forms are whole words to be recalled, not assembled, and drill them with spaced repetition so they become effortless.

Within a month of ten-minute daily sessions, Tá agam, tá orm and tá liom will come out without thinking, and you will understand why native speakers sound fast: they are not speaking quickly, they are just recalling one tight word where English needs two or three. If you want the whole beginners road map, the guide to Irish Gaelic for complete beginners shows where prepositional pronouns fit in the larger grammar picture.