Ferien er i august.

Because -en marks the noun as definite singular in Norwegian.

• ferie = a holiday / a vacation
• ferien = the holiday / the vacation

So ferien er i august refers to a specific holiday or vacation that is already known from the context.

Yes, ferien is grammatically singular.

That can feel a little strange to English speakers, because English sometimes uses plural expressions like the holidays or the summer holidays. Norwegian often uses a singular noun where English might use either singular or plural, depending on dialect and context.

So in this sentence, the grammar is singular even if the English translation might sometimes sound more natural in the plural.

Er is the present tense of å være, which means to be.

Examples:

• jeg er = I am
• du er = you are
• ferien er = the vacation is

A helpful point: Norwegian verbs do not change according to person the way English does. So you use er with I, you, he, we, and so on.

Because Norwegian normally uses i with months when talking about time.

So:

• i august = in August
• i juli = in July
• i september = in September

Here, i august is a time expression, not a place expression.

In Norwegian, the names of months are normally written with a lowercase letter.

So you write:

• august
• juli
• desember

This is different from English, where month names are capitalized. In Norwegian, you only capitalize them if they come at the beginning of a sentence.

The basic order here is:

subject + verb + time expression

So:

• Ferien = subject
• er = verb
• i august = time expression

This is a very normal Norwegian sentence pattern. It also fits the important Norwegian rule that the finite verb usually comes in second position in main clauses.

No, that would sound wrong in standard Norwegian.

When you mention a month as a time expression, you normally need i:

• Ferien er i august = correct
• Ferien er august = not correct

So the preposition is necessary here.

Not by itself. Ferien just means the holiday / the vacation, and the exact meaning depends on context.

For example, it could mean:

• a family vacation
• a school holiday
• a work vacation

If you want to be more specific, Norwegian often uses a compound noun, such as:

• sommerferien = the summer holiday / summer vacation
• juleferien = the Christmas holiday / Christmas break

So ferien is specific in grammar, but not necessarily specific in type.

It is grammatical and perfectly understandable, but the most natural wording depends on the situation.

For example:

• Ferien er i august can mean that a particular vacation period falls in August.
• Vi har ferie i august often sounds more natural if you mean We are on vacation in August or We have vacation in August.
• Sommerferien er i august is clearer if you specifically mean the summer vacation.

So the given sentence is correct, but in real conversation another version might sometimes be more natural.

The indefinite form is ferie.

So the pattern is:

• ferie = indefinite singular
• ferien = definite singular

You can think of it like this:

• en ferie = a vacation
• ferien = the vacation

This is a very common pattern in Norwegian, where the definite article is often attached to the end of the noun.