Timeplanen ble endret i går.

The schedule was changed yesterday.

Breakdown of Timeplanen ble endret i går.

• bli: to become
• i går: yesterday
• timeplanen: the schedule
• endret: changed

Questions & Answers about Timeplanen ble endret i går.

Why does timeplanen end in -en?

Because Norwegian usually adds the definite article to the end of the noun.

• en timeplan = a timetable / a schedule
• timeplanen = the timetable / the schedule

So -en here means the.

Also, timeplan is a common-gender noun in Bokmål, which is why the indefinite article is en and the definite ending is -en.

Why is it ble endret instead of just one verb?

This is a very common Norwegian passive structure.

• ble = past tense of å bli = to become
• endret = past participle of å endre = changed

Together, ble endret means was changed.

So:

• Timeplanen ble endret = The schedule was changed

This is similar to English passive grammar:

• was changed
• got changed in some contexts

What form is endret?

Endret is the past participle of å endre.

Some useful forms are:

• å endre = to change
• endrer = change / changes
• endret = changed

In this sentence, endret is not functioning as the main finite verb by itself. It is part of the passive construction ble endret.