The simple future tense, just like the simple past, has many irregular stems and endings. In general, the verb in the future looks a little like the verb in the simple past, so if you remember the past tense you may deduce the future tense.
Below you will find the simple future of 58 frequently used verbs.
(today) –> αγοράζω
(tomorrow) –> θα αγοράσω
(today) –> ακούω
(tomorrow) –> θα ακούσω
(today) –> ανεβαίνω
(tomorrow) –> θα ανέβω
(today) –> ανοίγω
(tomorrow) –> θα ανοίξω
(today) –> απαντάω
(tomorrow) –> θα απαντήσω
(today) –> αρρωσταίνω
(tomorrow) –> θα αρρωστήσω
(today) –> αφήνω
(tomorrow) –> θα αφήσω
(today) –> βγαίνω
(tomorrow) –> θα βγω
(today) –> βλέπω
(tomorrow) –> θα δω
(today) –> βρίσκω
(tomorrow) –> θα βρω
(today) –> γράφω
(tomorrow) –> θα γράψω
(today) –> γυρίζω
(tomorrow) –> θα γυρίσω
(today) –> διαβάζω
(tomorrow) –> θα διαβάσω
(today) –> διαλέγω
(tomorrow) –> θα διαλέξω
(today) –> διαμαρτύρομαι
(tomorrow) –> θα διαμαρτυρηθώ
(today) –> διαφωνώ
(tomorrow) –> θα διαφωνήσω
(today) –> δίνω
(tomorrow) –> θα δώσω
(today) –> δουλεύω
(tomorrow) –> θα δουλέψω
(today) –> είμαι
(tomorrow) –> θα γίνω
(today) –> επιστρέφω
(tomorrow) –> θα επιστρέψω
(today) –> έρχομαι
(tomorrow) –> θα έρθω
(today) –> έχω
(tomorrow) –> θα έχω
(today) –> θέλω
(tomorrow) –> θα θελήσω
(today) –> κάνω
(tomorrow) –> θα κάνω
(today) –> καταλαβαίνω
(tomorrow) –> θα καταλάβω
(today) –> κατεβαίνω
(tomorrow) –> κατέβαινα
(today) –> κλείνω
(tomorrow) –> θα κλείσω
(today) –> κοιμάμαι
(tomorrow) –> θα κοιμηθώ
(today) –> λέω
(tomorrow) –> θα πω
(today) –> μιλάω
(tomorrow) –> θα μιλήσω
(today) –> μπαίνω
(tomorrow) –> θα μπω
(today) –> μπορώ
(tomorrow) –> θα μπορέσω
(today) –> νοικιάζω
(tomorrow) –> θα νοικιάσω
(today) –> ξεκινάω
(tomorrow) –> θα ξεκινήσω
(today) –> ξέρω
(tomorrow) –> θα μάθω
(today) –> ξεχνάω
(tomorrow) –> θα ξεχάσω
(today) –> ξυπνάω
(tomorrow) –> θα ξυπνήσω
(today) –> οδηγώ
(tomorrow) –> θα οδηγήσω
(today) –> παίρνω
(tomorrow) –> θα πάρω
(today) –> παραγγέλνω
(tomorrow) –> θα παραγγείλω
(today) –> πάω (πηγαίνω)
(tomorrow) –> θα πάω
(today) –> περπατάω
(tomorrow) –> θα περπατήσω
(today) –> πετάω
(tomorrow) –> θα πετάξω
(today) –> πίνω
(tomorrow) –> θα πιω
(today) –> πλένω
(tomorrow) –> θα πλύνω
(today) –> πληρώνω
(tomorrow) –> θα πληρώσω
(today) –> ρωτάω
(tomorrow) –> θα ρωτήσω
(today) –> σπουδάζω
(tomorrow) –> θα σπουδάσω
(today) –> σταματάω
(tomorrow) –> θα σταματήσω
(today) –> στρίβω
(tomorrow) –> θα στρίψω
(today) –> συμφωνώ
(tomorrow) –> θα συμφωνήσω
(today) –> συνεχίζω
(tomorrow) –> θα συνεχίσω
(today) –> ταξιδεύω
(tomorrow) –> θα ταξιδέψω
(today) –> τηλεφωνώ
(tomorrow) –> θα τηλεφωνήσω
(today) –> τρώω
(tomorrow) –> θα φάω
(today) –> φεύγω
(tomorrow) –> θα φύγω
(today) –> φτάνω
(tomorrow) –> θα φτάσω
(today) –> χάνω
(tomorrow) –> θα χάσω