Ég set glerið varlega í kassann, svo það brotni ekki.

I put the glass carefully into the box so it doesn’t break.

Breakdown of Ég set glerið varlega í kassann, svo það brotni ekki.

• ég: I
• það: it
• ekki: not
• setja: to put
• í: into
• kassinn: the box
• svo: so (that)
• glerið: the glass
• varlega: carefully
• brotna: to break

Questions & Answers about Ég set glerið varlega í kassann, svo það brotni ekki.

Why is glerið spelled with -ið at the end?

-ið is the definite article suffix for neuter singular nouns in Icelandic.

• gler = glass (an uncountable/material noun, neuter)
• glerið = the glass
  So the sentence is talking about a specific glass (or a specific amount of glass) already understood from context.

What case is glerið in here, and why?

It’s accusative, because it’s the direct object of the verb setja (to put/set).
You can think of it as: Ég set [eitthvað]... → I put [something]...

Why is it í kassann and not í kassanum?

With í (and several other prepositions), Icelandic uses:

• Accusative for movement/direction into something
• Dative for location inside something

Here you are moving the glass into the box, so it’s í kassann (accusative).
If it were already sitting there (location), you’d use í kassanum (dative): in the box.

What’s going on with the ending -ann in kassann?

kassi (box) is a masculine noun. In the accusative singular definite, masculine nouns often end in -ann (or -inn, depending on the noun class).

• kassi = a box (nom.)
• kassann = the box (acc. definite)

Why does Icelandic use set here—what tense/person is it?

set is the 1st person singular present tense form of setja (to put).

• ég set = I put / I am putting
  Icelandic present tense often covers both simple present and present continuous, depending on context.

Where can varlega go in the sentence? Is the position fixed?

It’s fairly flexible, but some placements sound more neutral than others. Common options:

• Ég set glerið varlega í kassann... (very natural)
• Ég set varlega glerið í kassann... (possible, slightly more “carefully” focused)
• Varlega set ég glerið í kassann... (more emphatic/stylistic)

Adverbs usually go near the verb or right after the object, but word order can shift with emphasis.

Why is there a comma before svo?

Because svo það brotni ekki is a subordinate purpose clause (a “so that…” clause). Icelandic typically uses a comma to separate the main clause from this kind of dependent clause.

Why does it say svo það brotni ekki—what form is brotni?

brotni is the present subjunctive of brotna (to break—intransitive, “break” as something breaks).
After svo (að) meaning so that / in order that, Icelandic commonly uses the subjunctive to express purpose/desired outcome:

• ...svo það brotni ekki = so that it won’t break / so it doesn’t break

In casual speech/writing, you may also see svo að explicitly: svo að það brotni ekki.

Why is it það—what does it refer to?

það is neuter singular and refers back to glerið (neuter). Icelandic pronouns must match the grammatical gender of what they refer to.

Why is ekki at the very end of the clause?

In subordinate clauses like svo það brotni ekki, it’s very common for ekki to come late, often after the verb.
This placement is normal and idiomatic:

• það brotni ekki = it not-break → it doesn’t break / won’t break

How do you pronounce some tricky parts: Ég, glerið, kassann, brotni?

A rough guide (accent varies by speaker):

• Ég: sounds like yeh (with a light y sound at the start)
• glerið: roughly gleh-ri-th (final ð is like the th in this)
• kassann: roughly kah-san with a long-ish n sound at the end
• brotni: roughly brot-nih (the tn cluster is pronounced tightly; many speakers make it sound a bit like dn in flow)

If you want, I can give a more detailed IPA version too.