Questions & Answers about Depremden beri bu binada tatbikatlar düzenleniyor.
-den beri consists of the ablative suffix -den (“from”) plus beri (“since”). It marks the starting point of a continuing situation up to now.
• Depremden beri = “from the earthquake until now” = since the earthquake
• You can attach it to any time noun: dün (“yesterday”) → dünden beri (“since yesterday”); geçen yıl (“last year”) → geçen yıldan beri (“since last year”).
bu binada is in the locative case, marked by -da (with vowel harmony). It means “in this building.”
• Locative -da/-de answers “where?”
• bu bina (“this building”) → bu binada (“in this building”)
Here it indicates the place where the drills take place.