tijdens

during

de

• Article

  the (definite article, masculine and feminine singular, plural)

• Prep

is

• Verb

  third-person singular present indicative of zijn; is, equals

• Adv

er

1. there (unspecific to distance)
2. it; him, her, them.

een

• Article

  Placed before a singular noun, indicating a general case of a person or thing: a, an. Compare with de and het.

• Num

muur

1. wall
2. wall (figuratively, any barrier which limits access)
3. a type of fast-food vending machine with compartments arranged similar to a wall that contain snacks (chiefly in the phrase "uit de muur trekken")

ingestort

past participle of instorten