Participles: εἰμί
The only participle of the irregular verb εἰμί, “to be,” has present active forms. Its forms look like the regular endings of the present active participle.
| Case, number | Masculine | Feminine | Neuter | 
|---|---|---|---|
| Singular | |||
| Nominative singular | ὤν | οὖσα | ὂν | 
| Genitive singular | ὄντος | οὔσης | ὄντος | 
| Dative singular | ὄντι | οὔσῃ | ὄντι | 
| Accusative singular | ὄντα | οὖσαν | ὄν | 
| Plural | |||
| Nominative | ὄντες | οὖσαι | ὄντα | 
| Genitive | ὄντων | οὐσῶν | ὄντων | 
| Dative | οὖσιν | οὖσαις | οὖσιν | 
| Accusative | ὄντας | οὖσας | ὄντα |