Göngugrindin er við rúmið.

In Icelandic, the definite article is usually attached to the end of the noun instead of being a separate word.

• göngugrind = walking frame / walker
• göngugrindin = the walking frame / the walker
• rúm = bed
• rúmið = the bed

So the sentence literally has the built into both nouns.

The dictionary form is göngugrind.

In this sentence, göngugrindin is:

• singular
• definite
• nominative
• feminine

It is nominative because it is the subject of the sentence: the thing that is by the bed.

It is a compound noun.

• göngu- relates to walking
• grind means something like frame, barrier, or grille

So the literal idea is walking frame. In natural English, that is:

• walking frame in British English
• walker in American English

Er means is.

It is the present tense of the verb að vera = to be.

So:

• Göngugrindin er ... = The walker is ...

No. Here við means by, next to, or at.

So:

• við rúmið = by the bed / next to the bed

This is not the usual Icelandic word for with in the sense of accompaniment. That is usually með.

So compare:

• við rúmið = by the bed
• með henni = with her

Because við normally takes the accusative case in modern Icelandic.

The noun is rúm (bed), which is a neuter noun. In neuter singular, the nominative definite and accusative definite forms are the same:

• nominative: rúmið
• accusative: rúmið

So after við, you get rúmið.

By contrast, rúminu is dative, which would be used in other contexts, not here.

Yes, but Icelandic works differently from English.

Icelandic has:

• a definite article attached to nouns
• no true indefinite article equivalent to English a/an

So rúmið specifically means the bed.

If you remove the article and say rúm, that can sometimes have an indefinite sense, but Icelandic does not always use bare singular nouns in exactly the same way English uses a. Often the context tells you whether something is definite or indefinite.

In this sentence, rúmið clearly refers to a specific bed.

The basic word order here is very normal:

• Göngugrindin = subject
• er = verb
• við rúmið = location phrase

So the pattern is:

subject + verb + place

But Icelandic word order is fairly flexible for emphasis. For example, you could put the location first:

• Við rúmið er göngugrindin.

That gives extra focus to by the bed.

And in a yes/no question, the verb comes first:

• Er göngugrindin við rúmið? = Is the walker by the bed?

Yes. Icelandic can also use a more specific verb of position.

For example:

• Göngugrindin stendur við rúmið.

That would mean something like The walker is standing by the bed.

Using er is more neutral. It simply states the location without focusing on the physical posture of the object.

The nouns have different grammatical genders:

• göngugrind is feminine
• rúm is neuter

This matters because Icelandic noun endings change depending on:

• gender
• number
• case
• definiteness

That is why the definite forms look different:

• feminine: göngugrindin
• neuter: rúmið

So the endings are not random; they reflect the grammar of each noun.