Masa her akşam siliniyor.

The table is wiped every evening.

Breakdown of Masa her akşam siliniyor.

• masa: the table
• her akşam: every evening
• silinmek: to be wiped

Questions & Answers about Masa her akşam siliniyor.

Why is masa not masayı here?

Because masa is the subject of this sentence, not the direct object.

In the active version, you could say:

• Biri masayı her akşam siliyor. = Someone wipes the table every evening.

There, masayı is the direct object, so it takes the accusative ending -yı.

But in the passive:

• Masa her akşam siliniyor.

the thing affected by the action becomes the grammatical subject, so it appears as plain masa, not masayı.

What does her akşam mean exactly?

Her akşam means every evening.

• her = every
• akşam = evening

So:

• her gün = every day
• her hafta = every week
• her akşam = every evening

This is a very common pattern in Turkish: her + singular noun.

Why is it her akşam, not her akşamlar or her akşamı?