Usages of ξέρω
Δεν ξέρω καλά ελληνικά.
I don't know Greek well.
Αυτή ξέρει ελληνικά πολύ καλά.
She knows Greek very well.
Ξέρω ότι είσαι στο γραφείο.
I know that you are at the office.
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