Translation of "tak" into English

Sayangnya, banyak umat Islam yang tak menyadari, mengapa ia beragama Islam. Banyak Muslim yang menjadi Muslim hanya karena orang tua mereka Muslim.

Unfortunately, many Muslims are not aware of why he is a Muslim. Many Muslims became Muslim just because their parents are Muslims.

Seharusnya kamu tak perlu merasa malu.

You have no need to be ashamed.

Kabar beritaku tak begitu penting bagi orang yang tidak ingin tahu.

My news isn't too important to people who don't want to know.