Temporal Clauses in Irish

Overview

Temporal clauses tell you when something happens in relation to another event — before, after, while, until, or when. In Irish, each temporal conjunction has its own mutation rules, making this an area where grammar and vocabulary intersect closely.

The most common temporal conjunctions are nuair a (when), sula (before), tar éis (after), fad a (while), and go dtí go (until). Each triggers different mutations on the following verb: nuair a causes lenition, sula causes eclipsis, and go dtí go causes eclipsis. Learning these patterns is essential for constructing natural-sounding complex sentences.

Temporal clauses add depth and sophistication to your Irish. Instead of listing events as separate sentences, you can weave them together: Nuair a tháinig mé abhaile, bhí sé imithe (When I came home, he had gone).

How It Works

Temporal Conjunctions

Irish	English	Mutation
nuair a	when	lenition
sula	before	eclipsis
tar éis (do)	after	+ verbal noun
fad a / an fhad a	while	lenition
go dtí go	until	eclipsis
ó shin	since then	—
ó + verb	since	dependent form

Examples with Each Conjunction

Irish	English
Nuair a tháinig mé abhaile...	When I came home...
Sula dtéann tú...	Before you go...
Tar éis dom an obair a dhéanamh...	After I did the work...
Fad a bhí mé ag fanacht...	While I was waiting...
Fan go dtí go dtiocfaidh sé.	Wait until he comes.

Tar éis + Verbal Noun Construction

The "after" construction uses tar éis + possessive + verbal noun:

Irish	English
Tar éis dom dul abhaile...	After I went home...
Tar éis di an leabhar a léamh...	After she read the book...
Tar éis dóibh teacht...	After they came...

Examples in Context

Irish	English	Note
Nuair a tháinig mé abhaile, bhí sé imithe.	When I came home, he had gone.	"nuair a" + lenition
Sula dtéann tú, ól do chaife.	Before you go, drink your coffee.	"sula" + eclipsis
Tar éis dom an obair a dhéanamh.	After I did the work.	"tar éis" + verbal noun
Fan go dtí go dtiocfaidh sé.	Wait until he comes.	"go dtí go" + eclipsis
Fad a bhí mé ag obair, bhí sé ag léamh.	While I was working, he was reading.	"fad a" + lenition
Nuair a bheidh mé réidh, rachaidh mé.	When I am ready, I will go.	Future with "nuair"
Sula mbeidh sé ró-dhéanach...	Before it is too late...	Future with "sula"
Tar éis teacht abhaile, d'ith mé.	After coming home, I ate.	Simpler "tar éis" form
Ó tháinig sé, tá sé ag obair.	Since he came, he has been working.	"ó" for since
D'fhan mé go dtí go raibh sé dorcha.	I waited until it was dark.	Past with "go dtí go"

Common Mistakes

Forgetting the different mutations for each conjunction

• Wrong: Sula théann tú (lenition instead of eclipsis)
• Right: Sula dtéann tú.
• Why: Sula triggers eclipsis, not lenition. Each temporal conjunction has its own mutation pattern.

Using "nuair" without "a"

• Wrong: Nuair tháinig mé...
• Right: Nuair a tháinig mé...
• Why: Nuair requires the particle a before the verb, which then causes lenition.

Confusing "tar éis" constructions

• Wrong: Tar éis mé dul abhaile
• Right: Tar éis dom dul abhaile.
• Why: Tar éis requires the preposition do (+ person) before the verbal noun: dom (for me), di (for her), dó (for him).

Usage Notes

In spoken Irish, i ndiaidh is sometimes used instead of tar éis for "after," particularly in Connacht. The construction is the same: I ndiaidh dom dul abhaile (After I went home). In Ulster Irish, sula is sometimes replaced by sara or sular. These dialectal variations are worth recognizing even if you learn the standard forms first.

Practice Tips

1. Describe your morning routine using temporal clauses: Tar éis dom éirí, nigh mé m'aghaidh. Sula ndeachaigh mé amach, d'ith mé bricfeasta.
2. Practice converting pairs of sentences into one sentence with a temporal clause: "I came home" + "He was gone" → Nuair a tháinig mé abhaile, bhí sé imithe.

Related Concepts

• Indirect Questions and Conjunctions — the basic conjunction system that temporal clauses build on