Bestefar sitter i båten.

Bestefar is capitalized here because it’s being used like a name, similar to Grandpa in English.

• When you talk about your specific grandfather and use it as his name, you often capitalize it:
  
  • Bestefar sitter i båten. – Grandpa is sitting in the boat.
• When you talk about grandfathers in general, you usually don’t:
  
  • En bestefar sitter i båten. – A grandfather is sitting in the boat.
  • Bestefaren min sitter i båten. – My grandfather is sitting in the boat. (here bestefaren is not a name, so lowercase is common)

So: capital letter when it works as a proper name, lowercase when it’s just a common noun.

Bestefar can correspond to both grandfather and grandpa, depending on context and tone.

• As what you call your own grandfather, it’s quite warm and normal, like Grandpa.
• As a neutral term for someone’s grandfather, it works like grandfather:
  
  • Han er bestefar. – He is a grandfather.

There are also more specific words:

• farfar – father’s father
• morfar – mother’s father

But bestefar is the most general everyday word.

Sitter is the present tense of å sitte (to sit). In Norwegian, the simple present covers both English simple present and present continuous.

So Bestefar sitter i båten. can mean:

• Grandpa sits in the boat. (habitually)
• Grandpa is sitting in the boat. (right now)

The context decides which English translation fits. Norwegian normally doesn’t use a separate -ing form for this.

Yes, you can, but the meaning changes a bit.

• Bestefar sitter i båten.

  • Focus on how he is there: he is sitting.
  • Implies a physical sitting position.

• Bestefar er i båten.

  • Just says he is in the boat, without specifying what he’s doing (he could be standing, lying, etc.).

So sitter is more specific and concrete; er is more neutral about position.

Both i and på can be used with båt, but they give different images:

• i båten – in the boat, inside the boat:

  • He is down in the boat, within its sides.

• på båten – on the boat, on board the boat:

  • More about being aboard, somewhere on the vessel; can imply on deck or generally on the boat.

In a small open boat, i båten is very common, because you’re “in” the space of the boat. For talking about being on a larger vessel (ferry, ship), på båten is often more natural.

Båten is the definite form: the boat.

• en båt – a boat (indefinite, singular)
• båten – the boat (definite, singular)

Norwegian usually marks definiteness with an ending:

• båt
  • -en → båten – the boat

So Bestefar sitter i båten. means Grandpa is sitting in *the boat* (a specific boat both speaker and listener can identify).

You use the indefinite form with an article:

• Bestefar sitter i en båt. – Grandpa is sitting in a boat.

Compare:

• i en båt – in a (non-specific) boat
• i båten – in the (specific) boat

Båt is a masculine noun in Bokmål. Its main forms are:

• en båt – a boat (indefinite singular)
• båten – the boat (definite singular)
• båter – boats (indefinite plural)
• båtene – the boats (definite plural)

So in the sentence, båten is masculine, definite, singular.

You can place possessive pronouns in two main ways in Bokmål: after or before the noun.

For my grandfather:

• Bestefaren min sitter i båten.
• Min bestefar sitter i båten.

Both are correct; bestefaren min is very common and neutral. min bestefar can sound a bit more formal or emphatic.

For my boat:

• Båten min er liten. – My boat is small.
• Min båt er liten. – also correct, slightly more formal/emphatic.

Yes, you can change the word order for emphasis, and both versions are correct:

• Bestefar sitter i båten. – neutral word order (subject first).
• I båten sitter bestefar. – emphasizes in the boat; you’re highlighting where he is.

Norwegian allows this kind of fronting (putting i båten first) as long as you keep the verb in the second position in the clause, which sitter still is here.

Very roughly in English-like sounds (for a learner):

• båten ≈ “baw-ten”

  • å like in British law or aw in saw
  • final -en is unstressed, like a light “en”

• sitter ≈ “sit-ter”

  • both t are clearly pronounced
  • short i as in English sit

For accurate pronunciation, listening to native audio (e.g. from Forvo or a dictionary) is highly recommended.