Formal Subject 'Det' in Danish

Overview

Formal Subject 'Det' (Formelt Subjekt Det) is an important grammar concept at the A1 level in Danish. Using 'det' as formal subject in weather expressions, time, and impersonal constructions: 'det regner', 'det er koldt'.

At the beginner level, understanding this concept allows you to express yourself with greater accuracy and nuance. This grammar point builds on foundations you have established at earlier levels and connects to several related areas of Danish grammar.

As you work through this topic, pay attention to how it functions in authentic Danish texts and conversations. The patterns you learn here will become more natural with regular practice and exposure to the language.

How It Works

Core rules

Using 'det' as formal subject in weather expressions, time, and impersonal constructions: 'det regner', 'det er koldt'.

Key patterns

Danish	English
Det regner.	It's raining.
Det er varmt i dag.	It's warm today.
Det er fredag.	It's Friday.
Det tager to timer.	It takes two hours.

Weather expressions

Danish	English
Det regner.	It's raining.
Det sner.	It's snowing.
Det blaeser.	It's windy.
Det er koldt/varmt.	It's cold/warm.

Time expressions

Danish	English
Det er mandag.	It's Monday.
Det er klokken tre.	It's three o'clock.
Det er tidligt/sent.	It's early/late.

Evaluative expressions

Danish	English
Det er godt at vide.	It's good to know.
Det er svart at forstaa.	It's hard to understand.
Det er vigtigt at laere.	It's important to learn.
Det tager lang tid.	It takes a long time.

Examples in Context

Danish	English	Note
Det regner.	It's raining.	Weather
Det er varmt i dag.	It's warm today.	Weather + temperature
Det er fredag.	It's Friday.	Day of week
Det tager to timer.	It takes two hours.	Duration
Det er godt at vide.	It's good to know.	Evaluation
Det sner.	It's snowing.	Weather
Det er klokken ti.	It's ten o'clock.	Time
Det koster hundrede kroner.	It costs a hundred kroner.	Price
Det er svart at laere.	It's hard to learn.	Evaluation
Det blaeser meget.	It's very windy.	Weather

Common Mistakes

Using a specific subject instead of det

• Wrong: Vejret regner.
• Right: Det regner.
• Why: Weather expressions use the impersonal det, not a specific noun. This is the same as English 'it rains.'

Omitting det in evaluative expressions

• Wrong: Er godt at vide.
• Right: Det er godt at vide.
• Why: The formal subject det is required in these constructions, even though it does not refer to anything specific.

Confusing der er and det er

• Wrong: Det er en kat i haven. (meaning 'there is')
• Right: Der er en kat i haven.
• Why: Use der er for existence (there is/are) and det er for identification (it is/that is).

Practice Tips

• Practice with flashcards. Create cards with examples of formal subject 'det' on one side and their English translations on the other. Review daily until the patterns feel automatic.
• Use formal subject 'det' in daily sentences. Try to create three new sentences each day using this grammar point. Write them in a notebook and review them weekly.
• Listen for formal subject 'det' in Danish media. Even at the beginner level, try listening to simple Danish podcasts or children's shows and notice how native speakers use this pattern.

Related Concepts

• Være (to be) - Parent concept