Learn Arabic (Modern Standard): أنا في البيت الآن. تصبح على خير!

In Arabic, present tense sentences that describe a state of being don't use a verb for 'to be' (like 'am', 'is', or 'are'). You simply put the subject أنا (I) and the location في البيت (in the house) together, and the 'am' is understood.

The translation says 'at home', but doesn't في البيت literally mean 'in the house'?

Yes, exactly! Arabic doesn't have a separate, commonly used word just for 'home' as an abstract concept. You use البيت (the house) with the preposition في (in). So, 'in the house' is the natural way to say 'at home'.

What is the literal translation of تصبح على خير?

It literally means 'May you wake up to goodness.' The word تصبح means 'you wake up in the morning', على means 'on' or 'to', and خير means 'goodness'. It is the standard Arabic way to wish someone a good night.

Do I need to change how I say تصبح على خير if I am talking to a woman?

Yes! The word تصبح is the form used when speaking to a male. If you are saying good night to a female, you need to add a feminine ending to the verb, making it تصبحي على خير (or تصبحين in very formal Arabic).