Κοιτάζω την οθόνη γιατί περιμένω μήνυμα.

because

Breakdown of Κοιτάζω την οθόνη γιατί περιμένω μήνυμα.

• περιμένω: to wait
• το μήνυμα: the message
• η οθόνη: the screen

Questions & Answers about Κοιτάζω την οθόνη γιατί περιμένω μήνυμα.

Why is it την οθόνη and not just οθόνη?

Because οθόνη is the direct object of κοιτάζω (I look at / I am looking at), and Greek normally uses the definite article here.

Also, οθόνη is a feminine noun, so its forms are:

• η οθόνη = the screen (nominative, subject)
• την οθόνη = the screen (accusative, object)

So in Κοιτάζω την οθόνη, the object has to be in the accusative: την οθόνη.

What case are την οθόνη and μήνυμα in?

Both are in the accusative, because both are objects of verbs.

• κοιτάζω την οθόνη = I look at the screen
• περιμένω μήνυμα = I wait for / expect a message

A useful detail: μήνυμα is a neuter noun, and neuter nouns often have the same form in the nominative and accusative. So μήνυμα does not visibly change here.

Why is there no article before μήνυμα?