Simple or compound verbs usually throw the accent as far back as the quantity of the last syllable permits (recessive accent, cross159).
λύ_ω, λύ_ομεν, ἐλυ_όμην; παιδεύω, παιδεύουσι, ἐπαιδευέτην; ἀποβάλλω, ἀπόβαλλε; ἀπολύ_ω, ἀπέλυ_ον; ἄπειμι, σύνεσμεν, σύμφημι, πάρεστι.424
To this general rule there are exceptions.
a. Enclitics.—All the forms of φημί
b. Imperatives.—(1) The second person sing. of the second aorist active imperative of five verbs is oxytone: εἰπέ
(2) The second aorist middle (2 sing.) is perispomenon, as λαβοῦ, παραβαλοῦ, καθελοῦ.
c. Contracted verbs are only apparent exceptions: thus, e.g., τι_μᾷ for τι_μάει, δηλοῦσι for δηλόουσι, φιλεῖν for φιλέειν. So the subjunctive of the first and second aorist passive λυθῶ for λυθέω, φανῶ for φανέω; the optatives λυθεῖμεν from λυθέ-ι_-μεν, διδοῖμεν from διδό-ι_-μεν; the futures φανῶ for φανέω, φανοῖμι for φανέοιμι, φανεῖν for φανέειν, φανῶν for φανέων; λιπεῖν for λιπέεν; and the present and second aorist active and middle subjunctive of most μι-verbs, as τιθῶ for τιθέω, ἱστῶμαι, θῶμαι, perf. κεκτῶμαι. On διδοῦσι, τιθεῖσι, see cross463 d.
N. 1.—In athematic optatives the accent does not recede beyond the diphthong containing -ι_-, the sign of the optative mood: ἱσταῖο, ἱσταῖμεν, ἱσταῖτο, διδοῖτο; and so in λυθεῖμεν, λυθεῖεν.
d. Poetic forms sometimes fail to follow the rule, as ἐών
Infinitives, participles, and verbal adjectives are verbal nouns ( cross358), and hence do not regularly show recessive accent.
a. Infinitives.—The following infinitives accent the penult: all infinitives in -ναι, as λελυκέναι, λυθῆναι, ἱστάναι, στῆναι (except Epic -μεναι, as στήμεναι); in verbs in ω the first aorist active, as λῦσαι, παιδεῦσαι, the second aorist middle, as λιπέσθαι, the perfect (middle) passive, as λελύσθαι, πεπαιδεῦσθαι, πεποιῆσθαι.425aD
The 2. aor. mid. inf. in Hom. is recessive in ἀγέρεσθαι (ἀγείρω
N.—The present inf. of contracted verbs and the second aorist active inf. of ω-verbs have the perispomenon by 424 c.
b. Participles.—(1) Oxytone: the masculine and neuter sing. of the second aorist active, as λιπών, λιπόν; and of all participles of the third declension ending in -ς in the masculine (except the first aorist active), as λυθείς λυθέν, λελυκώς λελυκός, ἑστώς ἑστός, τιθείς τιθέν, διδούς διδόν, ἱστά_ς ἱστάν, δεικνύ_ς δεικνύν (but λύ_σα_ς, ποιήσα_ς). Also ἰών
(2) Paroxytone: the perfect middle (passive): λελυμένος.
N.—Participles are accented like adjectives, not like verbs. The fem. and neuter nom. accent the same syllable as the masc. nom. if the quantity of the ultima permits, thus παιδεύων, παιδεύουσα, παιδεῦον (not παίδευον); ποιήσα_ς, ποιήσα_σα, ποιῆσαν (not ποίησαν); φιλῶν, φιλοῦσα, φιλοῦν (from φιλέον).425b2D
But Hom. has ἀλαλήμενος (ἀλάομαι
c. Verbal Adjectives.—The verbal adjective in -τος is accented on the ultima (λυτός); that in -τεος on the penult (λυτέος).
N.—Prepositional compounds in -τος denoting possibility generally accent the last syllable and have three endings ( cross286), as διαλυτός
Exceptions to the recessive accent of compound verbs.—a. The accent cannot precede the augment or reduplication: ἄπειμι
N.—A long vowel or diphthong not changed by the augment receives the accent: ὑπ-εῖκε
b. The accent cannot precede the last syllable of the preposition before the simple verb nor move back to the first of two prepositions: περίθες
c. When compounded with a monosyllabic preposition, monosyllabic second aorist middle imperatives in -οῦ from μι-verbs retain the circumflex: προδοῦ
d. The accent of uncompounded infinitives, participles, aorist passive, perfect passive, and of the second aorist middle imperative (2. p. sing., but see cross426 c) is retained in composition.
f. Compound subjunctives are differently accentuated in the Mss.: ἀποδῶμαι and ἀπόδωμαι, ἐπιθῆται and ἐπίθηται; the aorist of ἵ_ημι has προῶμαι and πρόωμαι. ἀπέχω has ἀπόσχωμαι. Compound optatives retain the accent of the primitives: ἀποδοῖτο, as δοῖτο. For συνθοῖτο, προσθοῖσθε ( cross746 c) the Mss. occasionally have σύνθοιτο, πρόσθοισθε; and so πρόοιτο.427
Final -αι (and -οι) are regarded as long in the optative ( cross169), elsewhere as short. Hence distinguish the forms of the first aorist.
|3. Sing. Opt. Act.||Infin. Act.||2. Sing. Imper. Mid.|
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].