Vi plejer at spise aftensmad i haven om sommeren.

Vi is the subject form of we.

In this sentence, vi is the one doing the action:

• Vi plejer at spise ... = We usually eat ...

Os is the object form, like us, and would be used in sentences such as:

• Han ser os = He sees us

So here, vi is correct because we are the subject of the sentence.

Here plejer means usually do, tend to do, or be in the habit of doing.

It comes from the verb at pleje, but in everyday Danish this verb is very often used in this special sense of habit:

• Jeg plejer at stå tidligt op = I usually get up early
• Vi plejer at spise aftensmad i haven = We usually eat dinner in the garden

So in this sentence, plejer does not mean take care of. It means something like normally / as a habit.

Because spise is in the infinitive form, and after plejer Danish normally uses at + infinitive.

So the pattern is:

• plejer at + verb

Examples:

• Jeg plejer at læse om aftenen
• Hun plejer at cykle på arbejde
• Vi plejer at spise aftensmad i haven om sommeren

This is similar to English usually + verb, but Danish uses a structure more like be in the habit of to eat—except that in normal Danish, this is just the standard construction.

Because spise comes after plejer at, so it stays in the infinitive.

Compare:

• Vi spiser aftensmad = We eat dinner
  Here spiser is the finite verb.

• Vi plejer at spise aftensmad = We usually eat dinner
  Here plejer is the finite verb, and spise stays in the infinitive after at.

So only plejer is conjugated here.

Meal words in Danish often appear without an article, just like in English:

• spise morgenmad = eat breakfast
• spise frokost = eat lunch
• spise aftensmad = eat dinner

So aftensmad here is being used as a general meal noun, not as a countable thing.

You would only add an article in a more specific context, for example if you were talking about a dinner as a particular event or meal. But in ordinary phrases like eat dinner, Danish usually has no article.

Aftensmad literally means evening food, and it is the normal word for dinner / evening meal in much of Denmark.

A learner may also come across middag, but that can be tricky because usage varies by region and family tradition. In many contexts today:

• frokost = lunch
• aftensmad = dinner

So aftensmad is a very natural everyday word here.

Because haven is the definite form of have.

• en have = a garden
• haven = the garden

Danish usually adds definiteness as an ending:

• en bil → bilen
• et hus → huset
• en have → haven

So i haven means in the garden.

Because i is the normal preposition for in in expressions like in the garden.

• i haven = in the garden
• i huset = in the house
• i køkkenet = in the kitchen

English sometimes says in the garden, and Danish matches that here very neatly.

Because om is commonly used for repeated time periods or during a season / part of the day in a general sense.

So:

• om sommeren = in summer / during the summer
• om vinteren = in winter
• om morgenen = in the morning
• om aftenen = in the evening

In this sentence, the meaning is habitual and general, so om sommeren is exactly what you would expect.

I sommeren would sound different and is not the normal way to express this idea. Danish prefers om sommeren for general seasonal habits.

After om, Danish often uses the definite form for seasons and parts of the day when speaking generally:

• om sommeren
• om vinteren
• om morgenen
• om aftenen

So even though English often says just in summer, Danish naturally says om sommeren with the definite ending.

This is just a normal Danish pattern, and it is worth learning as a fixed expression.

Yes. Plejer is present tense.

But even though the verb is present tense, the sentence describes a habit or usual practice, not only something happening right now.

That is very common in both Danish and English:

• Vi plejer at spise aftensmad i haven om sommeren
• We usually eat dinner in the garden in summer

So present tense is the normal tense for habits.

The word order is a very normal Danish neutral order:

• Vi = subject
• plejer = finite verb
• at spise aftensmad = infinitive phrase
• i haven = place
• om sommeren = time

So the basic structure is:

subject + finite verb + infinitive phrase + place + time

This is a natural, unmarked order.

Danish word order can change if you want to emphasize something. For example:

• Om sommeren plejer vi at spise aftensmad i haven

Here om sommeren is moved to the front, and then the verb plejer must come before the subject vi because of Danish V2 word order.

Yes, absolutely.

That version is also correct, and it puts a little more focus on om sommeren.

Compare:

• Vi plejer at spise aftensmad i haven om sommeren
  Neutral statement

• Om sommeren plejer vi at spise aftensmad i haven
  Slight emphasis on in summer

Notice that when the time expression comes first, Danish changes the order:

• Om sommeren plejer vi ...
• not Om sommeren vi plejer ...

That is a very important Danish rule.

Usually ikke goes after the finite verb plejer:

• Vi plejer ikke at spise aftensmad i haven om sommeren

So the pattern is:

• subject + finite verb + ikke + at + infinitive

Examples:

• Jeg plejer ikke at drikke kaffe
• Hun plejer ikke at komme sent
• Vi plejer ikke at spise aftensmad i haven om sommeren

Yes. In a yes/no question, the finite verb comes first:

• Plejer I at spise aftensmad i haven om sommeren?

That means Do you usually eat dinner in the garden in summer?

This is normal Danish question word order:

• statement: I plejer at spise ...
• question: Plejer I at spise ... ?

Yes, that is a very good idea.

For learners, it is helpful to treat plejer at + infinitive as a common pattern meaning usually do / tend to do.

For example:

• Jeg plejer at gå en tur efter arbejde
• Han plejer at ringe om søndagen
• Vi plejer at spise aftensmad i haven om sommeren

If you learn the whole pattern, it becomes much easier to build your own sentences naturally.