Ir Conjugation Chart Revealed—Exact Rules You Can’t Ignore!

Ever struggled with mastering irregular verbs in Irish (Gaeilge)? Whether you’re learning Irish for school, travel, or passing a language exam, understanding ir verb conjugation is essential—but it’s famously tricky. That’s why we’re revealing the Ir conjugation chart—with clear, exact rules you can’t afford to ignore.


Understanding the Context

What Are Ir Irregular Verbs?

Ir irregular verbs, or ir verbs (from the Irish word ir, meaning “to be” in imperfect tenses), don’t follow the standard regular conjugation patterns. Instead, they change form unpredictably depending on person and number—making them tough for beginners but vital for fluency.


The Core Rule: Ir Conjugation Based on Verb Type and Gender

Key Insights

Irregular verbs in Irish fall into two main categories, each with distinct conjugation patterns: Ir hairiar (food group verbs) and Ir leathsaire (other irregulars). The rules depend largely on gender (masculine or feminine) and house paradigms.


Masculine vs. Feminine: The Fundamental Split

Masculine Irverbs (e.g., cuid → “to care”)

Irregular masculine verbs typically:

  • Hold fixed endings in present, imperfect, and future tenses, with minimalschool learning!

Final Thoughts

| Tense | Singular | Plural |
|-------------|-----------|----------|
| Present | ir | ach |
| Imperfect | ach ir | ach |
| Future | ir | ach |

> Note: “ach” means “never” in certain tenses—it’s not always “always”.

Feminine Irverbs (e.g., bód → “to have”)

Feminine verbs show a distinct shift:

  • The present tense often uses at or se prefixes;
  • Imperfect and future forms are irregular and tied to gender.

| Tense | Singular | Plural |
|-------------|------------|-----------|
| Present | se at | se at |
| Imperfect | at se | ach at |
| Future | at se | se at |


Advanced Rules: Irregular Paradigms and The “o/á” Change

One of the most critical exceptions occurs when verbs shift from gender-specific endings to unified forms in negation or certain tenses. For example:

  • gné (“to know”) conjugates se in present tense regardless of original gender.
  • Verbs ending in -ó, -á, -i, -í often stabilize at in present form.

The irregular “a/í” paradigm—seen in verbs like bolg (“to carry”)—also shows vowel shifts depending on perfective aspect.