επισκεφθεί

In a sentence

• Πρέπει να επισκεφθείς το μουσείο, είναι καταπληκτικό.

  You should visit the museum; it's amazing.

  Here, 'επισκεφθείς' is used in a subjunctive form to suggest an action (visiting the museum).

• Όταν επισκεφθεί την Αθήνα, θα πάμε στην Ακρόπολη.

  When he/she visits Athens, we will go to the Acropolis.

  In this sentence, 'επισκεφθεί' is used in a future subjunctive context to indicate the action of visiting Athens, which is contingent on the occurrence of the future visit.

• Εγώ μόλις επισκεφθεί το παλιό μου σχολείο και θυμήθηκα πολλά.

  I just visited my old school and remembered many things.

  'Επισκεφθεί' is used here in the past perfective form to describe a completed action of visiting the old school.