Ich habe einen Fehler übersehen.

I overlooked a mistake.

Breakdown of Ich habe einen Fehler übersehen.

• ich: I
• haben: to have
• einen: a
• der Fehler: the mistake
• übersehen: to overlook

Questions & Answers about Ich habe einen Fehler übersehen.

Why does the sentence use Perfekt (Ich habe … übersehen) instead of the simple past Präteritum (Ich übersah …)?

German typically uses the Perfekt in spoken and informal contexts to describe past events. It consists of an auxiliary verb (here haben) plus a past participle (übersehen). The Präteritum (simple past) form ich übersah is more common in written narratives, newspapers, books, etc.

Why is übersehen placed at the end of the sentence?

In a main clause with Perfekt, German word order is:

1. Subject (Ich)
2. Auxiliary (habe)
3. Objects or other elements (einen Fehler)
4. Past participle (übersehen)
   Putting the participle at the end is a hard rule in German perfect‐tense sentences.

Why is there no ge- prefix in übersehen (i.e., not geübersehen)?

Verbs with inseparable prefixes (like über-, be-, ent-, ver- etc.) do not take the “ge-” in their past participle. You simply keep the full verb: übersehen → hat übersehen.

Why is haben used here instead of sein?

German auxiliaries depend on the main verb’s properties.

• haben is used with transitive verbs (those that take a direct object) and most other verbs.
• sein is used with intransitive verbs indicating motion/change of state (e.g., gehen, sterben).

Since übersehen is transitive (to overlook something), it uses haben.

Why does Fehler take einen? Could I say ein Fehler or omit the article?

Fehler is a masculine noun: der Fehler. In the accusative case, masculine ein changes to einen.
• ein Fehler would be nominative (“a mistake” as the subject).
• You cannot omit the article because it’s a singular, countable noun in German.

How do I pronounce übersehen, especially the ü?

The ü is a front‐rounded vowel [y], similar to the French u in tu or the vowel in English few (without the [w] glide).
Phonetic guide: [ˌyːbɐˈzeːən]
– ü: [yː] (long)
– ber: [bɐ]
– se­hen: [ˈzeːən]

Can I also say Ich übersah einen Fehler? What’s the difference?

Yes. Ich übersah is the Präteritum (simple past) form of übersehen. It means the same thing but is more likely in written or formal contexts. Perfekt (Ich habe … übersehen) is more common in everyday spoken German.

Is there a difference between übersehen and ignorieren?

Yes.
• übersehen = “to overlook” (accidentally not notice something).
• ignorieren = “to ignore” (deliberately pay no attention to something).
So Ich habe einen Fehler übersehen implies you missed it unintentionally; Ich habe einen Fehler ignoriert implies you saw it but chose to disregard it.