Tom slaat de spijker met de hamer in de muur.

Because Dutch main clauses usually follow the verb-second rule. The finite verb comes second, no matter what comes first.

Here, Tom is the first element, so slaat must come second:

Tom slaat de spijker met de hamer in de muur.

If you start with something else, the verb still stays second:

Met de hamer slaat Tom de spijker in de muur.

That is a very basic and important Dutch word-order pattern.

Slaan is the infinitive, meaning to hit / to strike / to hammer. In the present tense, with hij or a name like Tom, you use slaat.

Present tense:

• ik sla
• jij slaat
• hij/zij/het slaat
• wij/jullie/zij slaan

So Tom slaat means Tom hits / Tom is hammering.

This verb is a little irregular because the stem is sla-, not something fully predictable from the spelling of the infinitive.

Because these nouns are common-gender nouns in Dutch, and common-gender singular nouns normally take de.

So:

• de spijker = the nail
• de hamer = the hammer
• de muur = the wall

Unfortunately, whether a noun takes de or het often has to be learned with the noun itself. Native English speakers often want a rule that always predicts it, but in practice you usually memorize the article together with the word.

De means the, so it refers to a specific nail. Een means a/an, so it would refer to a non-specific nail.

Both are possible, depending on context:

• Tom slaat de spijker in de muur. = Tom is hammering the nail into the wall.
• Tom slaat een spijker in de muur. = Tom is hammering a nail into the wall.

The sentence you were given uses the definite article, so it sounds like the nail is already known or identified.

Met de hamer means with the hammer. It tells you the instrument Tom is using.

So the structure is roughly:

• Tom = subject
• slaat = verb
• de spijker = direct object
• met de hamer = instrument phrase
• in de muur = destination/result location

You can leave met de hamer out, and the sentence still works: Tom slaat de spijker in de muur.

Adding met de hamer just makes the action more explicit.

Because the nail is going into the wall, not merely on the wall.

• in de muur = in/into the wall
• aan de muur = on the wall, attached to the wall
• op de muur = on top of the wall, or physically on the wall’s surface in some contexts

For example:

• Er hangt een schilderij aan de muur. = A painting is hanging on the wall.
• Tom slaat een spijker in de muur. = Tom hammers a nail into the wall.

So in is the natural choice for a nail.

Yes, in this sentence it does.

Dutch in can express either:

• location: in
• direction/result: into

The verb and the situation tell you which meaning is intended.

Compare:

• De spijker zit in de muur. = The nail is in the wall.
  (location)
• Tom slaat de spijker in de muur. = Tom hammers the nail into the wall.
  (movement/result)

So Dutch often uses in where English uses into.

Yes. Dutch allows some flexibility, especially with prepositional phrases like met de hamer and in de muur.

For example, these are also possible:

• Tom slaat met de hamer de spijker in de muur.
• Met de hamer slaat Tom de spijker in de muur.

The meaning stays basically the same, but the emphasis changes slightly.

What does not change in a main clause is the verb-second rule: the finite verb still has to come second.

Normally, no. In this sentence, it is best understood as the verb slaan plus the prepositional phrase in de muur.

So the structure is:

• slaan = to hit/hammer
• in de muur = into the wall

That matters because Dutch does have separable verbs with in-, but this sentence is not usually analyzed that way. A learner might expect something like English hammer in, but here Dutch is simply using slaan with a phrase telling where the nail ends up.

Yes, that is also possible and idiomatic.

De spijker in de muur slaan and de spijker de muur in slaan are very close in meaning. The version with de muur in can feel a bit more clearly directional, more like English into the wall.

So both patterns are useful to recognize:

• Tom slaat de spijker in de muur.
• Tom slaat de spijker de muur in.

As a learner, it is good to understand both, even if you choose to actively use just one at first.

Not exactly. Slaan has a broad range of meanings, and English often translates it differently depending on context.

It can mean things like:

• to hit
• to strike
• to beat
• to slam
• to hammer

In Tom slaat de spijker in de muur, the natural meaning is to hammer or to strike so that it goes into the wall.

So learners should not try to memorize only one English equivalent for slaan. It is better to learn it as a flexible verb whose exact meaning depends on the context.