Προτιμώ χρεωστική κάρτα, όχι πιστωτική κάρτα ή προπληρωμένη κάρτα.

I prefer a debit card, not a credit or prepaid card.

Breakdown of Προτιμώ χρεωστική κάρτα, όχι πιστωτική κάρτα ή προπληρωμένη κάρτα.

• ή: or
• όχι: not
• προτιμώ: to prefer
• η χρεωστική κάρτα: debit card

Questions & Answers about Προτιμώ χρεωστική κάρτα, όχι πιστωτική κάρτα ή προπληρωμένη κάρτα.

Why is there no εγώ for I in the sentence?

Because Greek usually drops subject pronouns when they are not needed.

The verb Προτιμώ already means I prefer, so εγώ is unnecessary unless you want extra emphasis, contrast, or clarity.

• Προτιμώ χρεωστική κάρτα = I prefer a debit card
• Εγώ προτιμώ χρεωστική κάρτα = I prefer a debit card

The second version sounds more like contrast, as in I prefer debit card, but someone else may not.

What exactly is Προτιμώ grammatically?

Προτιμώ is the 1st person singular present tense of προτιμώ.

So it means:

• I prefer
• I am preferring in a general present sense

It is a very common verb for expressing preference.
If you want to sound more polite or softer, Greek often uses:

• Θα προτιμούσα... = I would prefer...

Why is there no article before χρεωστική κάρτα, πιστωτική κάρτα, and προπληρωμένη κάρτα?