εἰμί (eimi): all forms
εἰμί means “to be, exist”. Below is its full conjugation in Ancient Greek.
Present active
Present active | Indicative | Subjunctive | Optative | Imperative |
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| 1st singular | εἰμι | ἔω | εἴην | |
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| 2nd singular | εἶς · εἶ | ᾖς | εἴης | ἴσθι |
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| 3rd singular | ἐστιν · ἐστι | ᾖ | εἴη | ἔστω |
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| 1st plural | ἐσμεν · εἰμεν | ἔωμες | εἴημεν · εἶμεν | |
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| 2nd plural | ἐστε | ἦτε | εἴητε · εἶτε | ἔστε |
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| 3rd plural | εἰσι | ὦσιν | εἶεν · εἴησαν | ἔστωσαν · ἔστων · ὄντων |
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Present middle
Present middle | Imperative |
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| 2nd singular | ἔσσο |
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Imperfect active
Imperfect active | Indicative |
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| 1st singular | ἦν · ἦ |
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| 2nd singular | ἦσθα |
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| 3rd singular | ἦν |
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| 1st plural | ἦμεν |
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| 2nd plural | ἦτε · ἦστε |
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| 3rd plural | ἦσαν |
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Imperfect middle
Imperfect middle | Indicative |
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| 1st singular | ἤμην |
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| 3rd plural | εἴατο |
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Future middle
Future middle | Indicative | Optative |
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| 1st singular | ἔσομαι | ἐσοίμην |
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| 2nd singular | ἔσῃ · ἔσει | ἔσοιο |
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| 3rd singular | ἔσται · ἐσσεῖται | ἔσοιτο |
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| 1st plural | ἐσόμεθα | ἐσοίμεθα |
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| 2nd plural | ἔσεσθε | ἔσοισθε |
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| 3rd plural | ἔσονται | ἔσοιντο |
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Infinitives
Infinitives | Active | Middle |
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| Present | εἶναι | |
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| Future | | ἔσεσθαι |
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Participles
Present active participle, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | ὤν | οὖσα | ὄν | |
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| Genitive | ὄντος | οὔσης | ὄντος | |
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| Dative | ὄντι | ἐούσῃ | ὄντι | |
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| Accusative | ὄντα | οὖσαν | ὄν | |
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| Vocative | ὄν | οὖσα | ὄν | |
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Present active participle, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | ὄντες | οὖσαι | ὄντα | |
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| Genitive | ὄντων | οὐσῶν | ὄντων | |
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| Dative | οὖσι(ν) | οὔσαις | ὄντεσι(ν) | |
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| Accusative | ὄντας | οὔσας | ὄντα | |
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| Vocative | ὄντες | οὖσαι | ὄντα | |
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Present active participle, forms | Masculine | Feminine | Neuter | Forms |
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| Forms | | | | εὖντα |
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Future middle participle, singular | Masculine | Feminine | Neuter |
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| Nominative | ἐσόμενος | ἐσομένη | ἐσόμενον |
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| Genitive | ἐσομένου | ἐσομένης | ἐσομένου |
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| Dative | ἐσομένῳ | ἐσομένῃ | ἐσομένῳ |
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| Accusative | ἐσόμενον | ἐσομένην | ἐσόμενον |
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| Vocative | ἐσόμενε | ἐσομένη | ἐσόμενον |
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Future middle participle, plural | Masculine | Feminine | Neuter |
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| Nominative | ἐσόμενοι | ἐσόμεναι | ἐσόμενα |
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| Genitive | ἐσομένων | ἐσομένων | ἐσομένων |
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| Dative | ἐσομένοις | ἐσομέναις | ἐσομένοις |
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| Accusative | ἐσομένους | ἐσομένας | ἐσόμενα |
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| Vocative | ἐσόμενοι | ἐσόμεναι | ἐσόμενα |
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Meaning and examples of εἰμί
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.