Hun tjekker fingerhullerne og triller bowlingkuglen.

Hun means she and is the subject form of the pronoun.

In this sentence, hun is the person doing the actions:

• tjekker = checks
• triller = rolls

So Danish uses hun here for the same reason English uses she in She checks ... and rolls ...

For comparison:

• hun = she
• hende = her

So Hun tjekker ... is correct, not Hende tjekker ...

Both are in the present tense.

• tjekker = checks / is checking
• triller = rolls / is rolling

Danish present tense is often formed with -er:

• at tjekke → tjekker
• at trille → triller

Just like in English, the Danish present can describe:

• something happening right now
• something that happens regularly
• a general action in a description

So this sentence could mean either:

• She is checking the finger holes and rolling the bowling ball or
• She checks the finger holes and rolls the bowling ball

Because Danish often puts the definite article at the end of the noun instead of using a separate word like English the.

Here is how it works:

• fingerhuller = finger holes
• fingerhullerne = the finger holes

and

• bowlingkugle = bowling ball
• bowlingkuglen = the bowling ball

So the endings carry the meaning of the:

• -en often marks definite singular
• -ne often marks definite plural

That is a very common feature of Danish.

Fingerhullerne is a compound noun plus a definite ending.

It can be broken down like this:

• finger = finger
• huller = holes
• fingerhuller = finger holes
• fingerhullerne = the finger holes

So:

• hul = hole
• huller = holes
• hullerne = the holes

Then Danish combines finger + huller into one compound noun:

• fingerhuller = finger holes

This is very normal in Danish. Nouns are often joined into one word.

Because Danish normally writes compound nouns as one word.

So:

• bowling
  • kugle = bowlingkugle
• bowlingkuglen = the bowling ball

This is different from English, where learners may expect bowling ball as two words. In Danish, that kind of expression is usually written as a single compound noun.

Some similar examples:

• fodbold = football / soccer ball
• tennisbold = tennis ball
• håndtaske = handbag

So bowlingkuglen is completely normal Danish spelling.

Because both verbs share the same subject.

The structure is:

• Hun tjekker fingerhullerne
• og triller bowlingkuglen

This means:

• She checks the finger holes
• and rolls the bowling ball

Danish, like English, often leaves out the repeated subject when it is the same in both parts.

You could repeat it:

• Hun tjekker fingerhullerne, og hun triller bowlingkuglen.

But that sounds more repetitive unless there is a reason to emphasize hun.

Yes. At trille often means to roll or to make something roll.

In this sentence:

• Hun triller bowlingkuglen = She rolls the bowling ball

It suggests a smooth rolling movement, which fits a bowling ball very naturally.

Related idea:

• bolden triller = the ball is rolling
• hun triller bolden = she rolls the ball

So trille can be:

• intransitive: something rolls
• transitive: someone rolls something

Because bowlingkuglen is the direct object of triller.

The verb at trille can take an object directly:

• trille en kugle = roll a ball
• trille bowlingkuglen = roll the bowling ball

So Danish does not need a preposition like with, on, or to here.

The same pattern appears with many verbs:

• Hun læser bogen = She reads the book
• Han åbner døren = He opens the door

In the same way:

• Hun triller bowlingkuglen = She rolls the bowling ball

Yes. Tjekker is a very common modern Danish verb, borrowed from English check.

The infinitive is:

• at tjekke = to check

Present tense:

• tjekker = checks / is checking

It is common in everyday speech and writing. Depending on the context, Danish might also use other verbs such as:

• kontrollerer = checks / inspects
• ser på = looks at

But in a casual, modern sentence like this, tjekker sounds natural.

It can mean either, depending on context.

Danish present tense is flexible, just like English.

So the sentence could mean:

• She is checking the finger holes and rolling the bowling ball
  if you are describing what is happening now

or:

• She checks the finger holes and rolls the bowling ball
  if you are describing a routine or a sequence in a story

Without more context, both are possible.

The basic pattern is:

• Subject
  • verb
    • object
• then og
  • another verb
    • another object

So:

• Hun = subject
• tjekker = verb
• fingerhullerne = object
• og = and
• triller = verb
• bowlingkuglen = object

This makes the full structure:

Hun + tjekker + fingerhullerne + og + triller + bowlingkuglen

That is a very straightforward Danish sentence pattern.