αλλά

In a sentence

• Ήθελα να πάω στην παραλία, αλλά άρχισε να βρέχει.

  I wanted to go to the beach, but it started raining.

  The word "αλλά" is used here as a conjunction to indicate contrast between the first clause (wanting to go to the beach) and the second clause (starting to rain).

• Πρέπει να διαβάσεις, αλλά πρώτα ας φας κάτι.

  You have to study, but let’s eat something first.

  In this sentence, "αλλά" is employed to connect two ideas where the second presents an additional thought before proceeding with the first action.

• Δε θέλω να κανονίσουμε για αύριο, αλλά για την επόμενη εβδομάδα.

  I don't want us to make plans for tomorrow, but for next week.

  Here, "αλλά" is used to introduce an alternative option or preference to the idea presented earlier.