Negation and Questions in Irish

Overview

One of the most striking features of Irish for English speakers is that there are no words for "yes" and "no." Instead, you answer questions by repeating the verb in either its positive or negative form. This A1 concept is essential for basic conversation and shapes how all Irish dialogue works.

Negation and question formation in Irish involve special particles placed before the verb. Each particle triggers a specific mutation — lenition or eclipsis — on the verb that follows. The negative particle ní causes lenition, while the question particle an causes eclipsis. Learning these particles and their effects is fundamental to building any sentence beyond a simple statement.

These patterns apply across all tenses, though the specific particles change. At this stage, focus on the present tense forms with tá and regular verbs, and you will be able to ask and answer the majority of basic questions.

How It Works

Present tense particles

Function	Particle	Mutation	Example
Negative	ní	lenition	Ní thuigim (I don't understand)
Question	an	eclipsis	An bhfuil tú? (Are you?)
Neg. question	nach	eclipsis	Nach bhfuil sé? (Isn't he?)

Past tense particles

Function	Particle	Mutation	Example
Negative	níor	lenition	Níor thuig mé (I didn't understand)
Question	ar	lenition	Ar cheannaigh tú? (Did you buy?)
Neg. question	nár	lenition	Nár chuala tú? (Didn't you hear?)

Answering questions (no yes/no words)

Question	Positive Answer	Negative Answer
An bhfuil tú réidh?	Tá.	Níl.
Ar ith tú?	D'ith.	Níor ith.
An dtuigeann tú?	Tuigim.	Ní thuigim.

Examples in Context

Irish	English	Note
An bhfuil tú réidh? — Tá. / Níl.	Are you ready? — Yes. / No.	Repeat the verb
Ní thuigim.	I don't understand.	Ní + lenition
Ar ith tú? — D'ith.	Did you eat? — Yes (ate).	Past question + answer
Nach bhfuil sé go deas?	Isn't it nice?	Negative question
Ní raibh sé anseo.	He wasn't here.	Past negative of tá
An maith leat é? — Is maith. / Ní maith.	Do you like it? — Yes. / No.	Copula question
Níor chuala mé thú.	I didn't hear you.	Past negative + lenition
An bhfuil Gaeilge agat? — Tá, beagán.	Do you speak Irish? — Yes, a little.	Common real-world question
Nach dtuigeann tú?	Don't you understand?	Neg. question + eclipsis
Ar tháinig sé? — Níor tháinig.	Did he come? — No (didn't come).	Past tense answer

Common Mistakes

Trying to say "yes" or "no" with a single word

• Wrong: Looking for an Irish word meaning "yes"
• Right: Repeat the verb — Tá, Níl, D'ith, Níor ith
• Why: Irish has no yes/no words. The verb itself carries the answer. This is one of the first things to accept and practice.

Forgetting the mutation after particles

• Wrong: Ní tuigim
• Right: Ní thuigim
• Why: Ní triggers lenition on the following verb. The t becomes th.

Mixing up an (eclipsis) and ar (lenition)

• Wrong: An chuaigh tú? (past question)
• Right: Ar chuaigh tú?
• Why: In the past tense, the question particle is ar (+ lenition), not an (+ eclipsis). An is for the present.

Practice Tips

1. Practice "question-answer" drills with a partner or by yourself: Ask "An bhfuil...?" and answer "Tá" or "Níl." Then move to past tense with "Ar...?" This builds the reflex of answering with verbs.
2. Write out five things you did today using the past tense, then convert each to a negative and a question. This triple practice (statement/negative/question) reinforces all three forms at once.

Related Concepts

• Basic Question Words — cad, cé, cá, cathain, conas, cén fáth for open-ended questions