Pro-Adverbs and svo, þá, þannig | Icelandic Grammar

A pro-adverb is to a phrase what a pronoun is to a noun: a short word that stands in for something already said, so you don't have to repeat it. Instead of restating a whole result, manner, or condition, Icelandic reaches for svo ("so, thus, and then"), þá ("then, in that case"), or þannig ("that way, thus") — each pointing back at something in the discourse and standing in for it. They look like small filler words, but two of them do genuine syntactic work. The standout case is þá in the result clause of a conditional: in Ef þú vilt, þá komdu, the þá isn't decorative — it fills the main clause's first slot and forces verb-second order. This page sorts out the three, plus the connector þar af leiðandi and the anaphoric pronoun það. (This is the anaphoric job of these words — svo as a degree intensifier "so big" lives on the Degree Adverbs page; the broader discourse-marker function is treated under Discourse.)

The three at a glance

Pro-adverb	Stands in for	Core meaning	English
svo	a result or next event	result / sequence	"so, and then, thus"
þá	the consequence of a condition	conditional consequence	"then, in that case"
þannig	a manner already mentioned	manner anaphor	"that way, like that, thus"

The overlap with English "then/so/thus" is exactly the problem: English blurs these three, so learners pick one at random. Icelandic keeps them apart by job — svo sequences events, þá draws a consequence from a condition, þannig points at a manner.

svo — result and sequence ("and so / and then")

svo chains events and consequences: "I did X, and so / and then Y." It marks that one thing followed from or after another. Placed at the start of a clause it usually carries the next event forward in a narrative; mid-clause it links a result.

Ég kom heim, fékk mér að borða og svo fór ég beint að sofa.

I came home, had something to eat, and then went straight to bed. (svo = next in sequence, 'and then')

Veðrið versnaði, svo við ákváðum að snúa við.

The weather got worse, so we decided to turn back. (svo = result, 'and so')

Hún var þreytt, og svona er það bara stundum.

She was tired, and that's just how it is sometimes. (svona, the demonstrative cousin of svo, 'like this/that')

Note the close relative svona "like this/that, this way" — the demonstrative manner word ("it's done svona"), overlapping with þannig below.

þá — the conditional consequence, and a piece of syntax

þá means "then, in that case" — but specifically the then that introduces a consequence, not the then that means "at that time" (that's þá too, but the temporal use is separate). Its most important role is as the resumptive marker in the result clause of a conditional: Ef þú vilt, *þá komdu* "If you want, then come." And here is the insight: that þá is not optional decoration. When the ef-clause is fronted, it occupies the first position of the main clause's "field"; Icelandic is a verb-second (V2) language, so the finite verb must come in second position. The little þá steps in to fill the prefield explicitly, and the verb follows it. þá is doing syntactic work — it is the visible "slot one" that licenses and signals the V2 inversion.

Ef þú vilt, þá komdu með okkur í bíó í kvöld.

If you want, then come with us to the cinema tonight. (þá fills the prefield after the fronted ef-clause)

Ef það rignir á morgun, þá verðum við bara heima.

If it rains tomorrow, then we'll just stay home. (þá + verb 'verðum' second — the resumptive 'then')

Ef þú ert svangur, þá er matur í ísskápnum.

If you're hungry, then there's food in the fridge. (ef … þá correlative; verb 'er' second after þá)

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Read þá in Ef …, þá … as a grammatical hinge, not just the word "then." The fronted ef-clause is too big to count as the main clause's first slot, so þá steps in to fill it — and because Icelandic is verb-second, the finite verb then comes right after þá: ef þú vilt, þá komdu, ef það rignir, þá verðum við heima. The þá is what triggers and marks the inversion. Drop it and you must invert anyway (ef þú vilt, komdu þá); keep it and the verb glues to it.

The pairing ef … þá is a true correlative, like English "if … then." The þá is optional in the sense that the V2 inversion can happen without it (Ef þú vilt, komdu með okkur), but when þá is present it is the explicit prefield-filler and the verb must follow it immediately.

þannig — the manner anaphor ("that way / like that / thus")

þannig points back at a manner — a way of doing something already established: "Do it that way," "that's how it works." It stands in for "in the manner just described." It also introduces a manner clause with að: þannig að "so that / in such a way that."

Gerðu það þannig — fyrst sjóða, svo steikja.

Do it that way — first boil, then fry. (þannig = 'in that way', manner anaphor)

Hún brosti þannig að ég vissi strax að allt væri í lagi.

She smiled in such a way that I knew at once everything was fine. (þannig að = 'in such a way that / so that')

„Af hverju gerðir þú þetta svona?

'Why did you do it this way?' — 'That's just how I was taught.' (þannig standing in for the whole manner)

The neighbour svona ("like this/that, this way") is very close in meaning; loosely, svona leans "like this" (closer, often demonstrated on the spot) and þannig leans "like that" (referring back), but in everyday speech they heavily overlap for "that way."

þar af leiðandi and anaphoric það

Two more anaphoric tools round out the set. þar af leiðandi is a fixed connective meaning "consequently, therefore, as a result" — more formal than svo, common in writing and careful speech, and it points back at a whole preceding situation as the cause. And the pronoun það ("it/that") often works anaphorically, standing in for an entire clause already mentioned: Ég vissi það "I knew that (the whole thing just said)," Það kom mér á óvart "That surprised me."

Flugið seinkaði um þrjár klukkustundir og þar af leiðandi misstum við af tengifluginu.

The flight was delayed three hours and consequently we missed the connection. (þar af leiðandi = 'consequently', formal)

Hann sagðist ætla að hjálpa, en það stóðst aldrei.

He said he'd help, but that never panned out. (það standing in for the whole promise)

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Match the register: everyday speech links results with svo ("so / and then"); writing and careful prose prefer þar af leiðandi ("consequently"). Both point back at a cause, but þar af leiðandi is the buttoned-up one — use it in an essay, not in chitchat.

English vs Icelandic: one "then", three jobs

English overworks "then" and "so": a single "then" covers temporal sequence ("first this, then that"), conditional consequence ("if so, then leave"), and inference, while "so" covers result, degree, and a discourse filler. Icelandic carves the territory by function, and the mismatch is where errors come from. The consequence-of-a-condition "then" is þá (and it triggers V2); the sequence "and then / and so" is svo; the manner "that way / thus" is þannig; the formal "consequently" is þar af leiðandi. The biggest single insight English speakers miss is grammatical, not lexical: þá in Ef …, þá … is not just a translation of "then" — it is a prefield-filler that licenses verb-second order, so the verb must come right after it. Treat þá there as part of the sentence's skeleton.

Common Mistakes

❌ Ef þú vilt, þá þú kemur með okkur.

V2 violation — after þá the finite verb comes second: þá kemur þú / þá komdu.

✅ Ef þú vilt, þá komdu með okkur.

If you want, then come with us.

þá fills the prefield, so the verb must follow it immediately (þá komdu / þá kemur þú), never \þá þú kemur. This is the V2 rule, and þá* is what makes it visible.

❌ Ég kom heim og þá fór ég að sofa.

Wrong pro-adverb for plain sequence — narrative 'and then' is svo, not the conditional þá.

✅ Ég kom heim og svo fór ég að sofa.

I came home and then went to bed.

For a simple "and then" in a sequence of events, use svo. Reserve þá for the consequence of a condition ("if … then") or "at that point/time."

❌ Gerðu það svo: fyrst sjóða, svo steikja.

Wrong word for 'that way' — manner is þannig (or svona), not svo: gerðu það þannig.

✅ Gerðu það þannig: fyrst sjóða, svo steikja.

Do it that way: first boil, then fry.

"Do it that way" is a manner — that's þannig (or svona). svo sequences events ("and then fry"), it doesn't point at a manner.

❌ Flugið seinkaði og svo við misstum af tengifluginu.

Two issues: in writing prefer þar af leiðandi, and the clause must be V2: svo misstum við.

✅ Flugið seinkaði og þar af leiðandi misstum við af tengifluginu.

The flight was delayed and consequently we missed the connection.

In careful/written register, "consequently" is þar af leiðandi; and like þá, a fronted connector forces V2 — misstum við, not *við misstum.

❌ Ef þú ert svangur, er matur í ísskápnum þá.

Stranded þá — the resumptive 'then' belongs in the prefield, before the verb, not tacked on at the end.

✅ Ef þú ert svangur, þá er matur í ísskápnum.

If you're hungry, then there's food in the fridge.

Resumptive þá sits at the front of the result clause (filling slot one), with the verb right after it — not stranded at the end of the clause.

Key Takeaways

A pro-adverb stands in for a whole phrase or clause, the way a pronoun stands in for a noun.
svo = result / sequence, "so / and then" (ég kom heim og svo fór ég að sofa) — everyday register.
þá = conditional consequence, "then / in that case" (ef þú vilt, þá komdu). Crucially, in Ef …, þá … it fills the prefield and triggers verb-second order — the finite verb comes right after þá.
þannig = manner anaphor, "that way / thus" (gerðu það þannig); þannig að = "so that / in such a way that." Cousin: svona "like this/that."
þar af leiðandi = "consequently" (formal/written); anaphoric það stands in for a whole preceding clause.
English's overloaded "then/so/thus" hides three distinct jobs — sort them by function, and remember þá is doing syntax, not just meaning "then."

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