Ahalera and ezin — can and can't

To say “I can / he/she can / we can” in Basque, you have two options: a formal one (ahalera with a special auxiliary) and a colloquial one (ahal with a normal auxiliary). At A2 level, it’s useful to recognize both.

For “cannot”, there is also a dedicated word: ezin.

Option 1: the colloquial form — ahal

The simplest one and the one you’ll hear most often:

partizipioa + ahal + auxiliar

English	Basque
Can you come?	Etorri ahal zara?
Can I come in?	Sartu ahal naiz?
Can you help me?	Lagundu ahal didazu?
Can we talk to you?	Hitz egin ahal dugu* zurekin?*

In written or more formal registers, ahal izan appears: etorri ahal izango da, jakin ahal izan dut. In spoken language, ahal + auxiliary works.

Option 2: the “true” ahalera — dezaket / naiteke

This is the synthetic form of the potential mood. It has two series, depending on whether the verb is transitive or intransitive.

Transitive verbs (NOR-NORK): dezaket

Pronoun	Form	English
nik	dezaket	I can (do) it
zuk	dezakezu	you can (do) it
hark	dezake	he/she can (do) it
guk	dezakegu	we can (do) it
zuek	dezakezue	you (pl.) can (do) it
haiek	dezakete	they can (do) it

participle without ending + dezaket: egin → egin dezaket, idatzi → idatz dezaket, jan → jan dezaket.

Intransitive verbs (NOR): naiteke

Pronoun	Form	English
ni	naiteke	I can
zu	zaitezke	you can
hura	daiteke	he/she can
gu	gaitezke	we can
zuek	zaitezkete	you (pl.) can
haiek	daitezke	they can

Etor naiteke? — Can I come?

Joan zaitezke? — Can you go?

Hori egia izan daiteke. — That can be true.

The synthetic formula

Type	Structure	Example
Transitive	participle (without typical final ending) + dezaket etc.	Liburua irakur dezakezu (you can read the book)
Intransitive	participle + naiteke etc.	Etor zaitezke? (can you come?)

Spelling detail: in the ahalera, the participle appears “clipped” for some verbs: jan → jan, egin → egin, irakurri → irakur, ikusi → ikus, etorri → etor. The final -i ending is dropped. It’s a typical formal marker.

Ezin — cannot

The negation of the ahalera has its own word: ezin.

ezin + partizipioa + auxiliar

English	Basque
I can’t come	Ezin dut etorri (NOR-NORK) or Ezin naiz etorri (NOR)
I can’t go	Ezin naiz joan
You can’t do that	Ezin duzu hori egin
I couldn’t sleep	Ezin nuen lo egin
One can’t know	Ezin da jakin
We can’t wait	Ezin dugu itxaron

Ezin follows the subject and is followed by the participle + auxiliary. It’s very productive.

In the past tense: nezakeen / nintekeen / ezin nuen

Form	Meaning
nezakeen	I could (do) it (past potential)
zezakeen	he/she could (do) it
nintekeen	I could (past NOR)
ezin nintzen	I couldn’t (NOR)
ezin nuen	I couldn’t (NOR-NORK)

Atzo ezin nintzen joan, gaixorik nengoen. — Yesterday I couldn’t go, I was sick.

Colloquial: Egin ahal duzu. — The most natural in speech.
Synthetic: Egin dezakezu. — More formal or written.
Negative with ezin: Ezin duzu egin. — For “you can’t do it”.

All three coexist. At A2, you should be able to produce the first two and recognize all of them.

Ahal izan in other tenses

English	Basque
I have been able to go	Joan ahal izan naiz
I will be able to go	Joan ahal izango naiz
I haven’t been able to	Ezin izan dut

Everyday examples

Lagundu ahal didazu, mesedez? — Can you help me?
Bihar ezin naiz etorri. — I can’t come tomorrow.
Hau uler dezaket. — I can understand this.
Ezin duzu hori egin. — You can’t do that.
Goazen lasai, denbora dugu eta. — Let’s take it easy, we have time.
Etxea bihar eros daiteke. — The house can be bought tomorrow.

Mini-dialogue

— Anboto, etor zaitezke bihar afaltzera?

— Tira, ezin dut: lan asko daukat eta berandu arte ezin naiz mugitu. Baina hurrengo astean etor naiteke, eta zer ekar dezaket?

— Ekar dezakezu ardo botila bat, hori asko gustatzen zaigu.

Teaching note: at A2 level, the most useful thing is to handle ezin dut/naiz for “I can’t” and ahal duzu? for asking questions well. You will integrate the synthetic forms (dezaket, naiteke) through reading. The B1 unit goes into them in more depth.