Bussen svinger ved krysset.

Because bussen means the bus, not just bus.

In Norwegian, the definite article is often added to the end of the noun:

• en buss = a bus
• bussen = the bus

This is very common in Norwegian. So instead of using a separate word like English the, Norwegian often attaches the definiteness to the noun itself.

Svinger is the present tense of the verb å svinge.

• å svinge = to turn
• svinger = turns / is turning

So:

• Bussen svinger = The bus turns or The bus is turning

Norwegian present tense is usually quite simple: many verbs take -er in the present tense.

It can mean either, depending on context.

Norwegian often uses the simple present where English might use either:

• turns
• is turning

So Bussen svinger ved krysset could mean:

• The bus turns at the intersection
• The bus is turning at the intersection

You usually decide from the situation which English version sounds most natural.

Ved usually means by, near, or at.

So ved krysset means something like:

• at the intersection
• by the intersection
• near the intersection

It places the turning in relation to the intersection.

If you said i krysset, that would mean in the intersection, which gives a slightly different picture: the bus is physically in the intersection when it turns.

So:

• ved krysset = at/by the intersection
• i krysset = in the intersection

Both can be possible in real life, but they are not exactly the same.

Because krysset is the definite singular form of the noun kryss or kryss/kryssing-related usage, here meaning the intersection.

For many neuter nouns in Norwegian, the definite singular ending is -et:

• et kryss = an intersection / a crossing
• krysset = the intersection

So just like bussen means the bus, krysset means the intersection.

Because Norwegian usually marks definiteness by adding an ending to the noun instead of using a separate article like English.

Compare:

• English: the bus

• Norwegian: bussen

• English: the intersection
• Norwegian: krysset

This is one of the biggest differences English speakers notice early on.

Yes, that is possible.

Norwegian main clauses follow the V2 rule, which means the finite verb usually comes in the second position.

So both of these are correct:

• Bussen svinger ved krysset.
• Ved krysset svinger bussen.

In the second version, ved krysset is moved to the front for emphasis or style, and then the verb svinger must still stay in second position.

This is different from English, where word order is usually less flexible in this way.

You would say:

En buss svinger ved et kryss.

Compare:

• Bussen svinger ved krysset. = The bus turns at the intersection.
• En buss svinger ved et kryss. = A bus turns at an intersection.

Notice the indefinite articles:

• en buss = a bus
• et kryss = an intersection

And the definite forms:

• bussen = the bus
• krysset = the intersection

You add ikke:

Bussen svinger ikke ved krysset.

That means:

The bus does not turn at the intersection
or
The bus is not turning at the intersection

In a normal main clause, ikke usually comes after the finite verb:

• Bussen svinger ikke ...

Very often, yes.

Å svinge is a common verb for turning, especially with vehicles:

• Bilen svinger. = The car turns / is turning.
• Bussen svinger. = The bus turns / is turning.

It can also be used more generally for changing direction.

English speakers should be careful not to overthink whether it means a slight turn, a corner, or a change in direction; context usually makes it clear.

A rough guide is:

BUS-sen SVING-er ve KRYS-set

A few useful notes:

• u in bussen is not like the English u in bus; it is shorter and more rounded.
• sv in svinger is pronounced with both sounds: sv-
• y in krysset is a vowel English does not really have; it is similar to saying ee with rounded lips.
• The final -et in krysset is usually clearly pronounced.

Pronunciation varies somewhat by dialect, but that gives you a reasonable starting point.