sudah

In a sentence

• Saya sudah makan tengah hari.

  I have already had lunch.

  Here, 'sudah' is used to indicate that the action of having lunch has been completed.

• Dia sudah pergi ke pasar pagi tadi.

  He/She has already gone to the market earlier this morning.

  In this sentence, 'sudah' denotes the completion of the action, emphasizing it occurred earlier.

• Projek itu sudah selesai sebelum tarikh akhir.

  The project was already completed before the deadline.

  In this context, 'sudah' conveys that the project was finished prior to a specific point in time.