Present Active Indicative
The **present active indicative** of an ordinary thematic verb is formed from the **present-system stem** + **thematic vowel** (ο/ε) + the thematic present active surface endings. Thus **λύω** belongs to the present system built on **λυ-**. The present system carries **imperfective viewpoint**; in the indicative it is **typically present/nonpast**. Context determines whether an individual occurrence is best understood as ongoing, habitual, iterative, gnomic/general, stative, historical-present, or otherwise. English translations such as 'I loose' or 'I am loosing' are contextual illustrations, not one-to-one definitions of the Greek form.
**1 John 4:8** — ὁ θεὸς **ἀγάπη** **ἐστίν**
*God is love.*
Parsing: ἐστίν = 3 sg. present indicative of εἰμί; gnomic/timeless present.
**John 5:39** — ἐραυνᾶτε **τὰς γραφάς**…
*You search the Scriptures…*
Parsing: ἐραυνᾶτε = 2 pl. present active (could be indicative or imperative; context).
Present Middle/Passive Indicative
The **present middle/passive** is formed from the present-system stem + thematic vowel + the shared present middle/passive inflectional series (**-μαι, -σαι → -ῃ, -ται, -μεθα, -σθε, -νται** in the λύω model). The morphology itself identifies a **middle/passive form**; interpretation is not determined by an English reflexive gloss. A form such as **λύεται** may receive middle, passive, intransitive, or lexically specified interpretation according to the **lexeme, construction, argument structure, and discourse context**. 'He looses for himself' and 'he is being loosed' are possible illustrative translations in suitable contexts, not the grammatical definitions of the form.
**Luke 8:18** — …βλέπετε οὖν πῶς **ἀκούετε**
*/see/ how you hear/ — ἀκούετε = 2 pl. pres. act.
**Rom 12:1** — παρακαλῶ οὖν ὑμᾶς, **ἀδελφοί**…
*/I appeal to you therefore, brothers/ — παρακαλῶ = 1 sg. pres. act.
Imperfect Active Indicative
The **imperfect active indicative** normally combines **imperfective viewpoint** with **past temporal reference**. In ordinary thematic verbs it uses the present-system stem with augment where appropriate and the thematic imperfect/secondary-series surface morphology. Thus **ἔλυον** = ἐ- + λυ- + thematic imperfect inflection. Context may yield ongoing, habitual/repeated, conative ('was trying to...'), backgrounding, or other imperfective readings. Those readings arise from the interaction of viewpoint, lexical meaning, construction, and discourse; they are not separate meanings encoded mechanically by the imperfect ending.
**Mark 5:13** — …καὶ **ἐπνίγοντο** ἐν τῇ θαλάσσῃ.
*…and they were choked in the sea.*
Parsing: ἐπνίγοντο = 3 pl. imperfect passive indicative of πνίγω.
**John 11:20** — ἡ οὖν Μάρθα **ὡς ἤκουσεν**… (aorist, contrast)
Imperfect example: **Mark 4:2** — καὶ **ἐδίδασκεν** αὐτοὺς ἐν παραβολαῖς πολλά
*and he was teaching them many things in parables* — ἐδίδασκεν = 3 sg. impf. act.
Imperfect Middle/Passive Indicative
The **imperfect middle/passive indicative** uses the present-system stem with characteristic past-indicative/secondary-system morphology and the imperfect middle/passive inflectional series (**-μην, -σο → -ου, -το, -μεθα, -σθε, -ντο** in the λύω model). **ἐλύετο** is morphologically 3rd singular imperfect middle/passive. Its semantic interpretation depends on the **lexeme, construction, argument structure, and context**. A passive translation ('he was being loosed') or a middle interpretation may be appropriate in a given clause, but neither is encoded merely by the shared ending.
Thematic Vowels
The thematic vowel alternates between **ο** and **ε** according to a fixed pattern: **ο before μ or ν and ε elsewhere** in the indicative (λύομεν, λύουσι(ν) vs. λύεις, λύει, λύετε). In the 1 sg. of -ω verbs there is **no separate personal ending**; the thematic vowel appears as long ω: **λύω**. This is why the lemma ends in -ω rather than -εω for thematic verbs (contrast the -μι verbs).
Primary Endings
**Primary endings** is a traditional **morphological ending-series** label, not simply a synonym for 'non-past endings.' In ordinary thematic present-system forms the familiar active surface pattern is **-ω, -εις, -ει, -ομεν, -ετε, -ουσι(ν)**, and the middle/passive pattern is **-μαι, -ῃ, -ται, -μεθα, -σθε, -νται**. These tables are especially useful for the thematic present system, but they are **not universal surface endings for every tense-form traditionally associated with the primary series**: the perfect, for example, has its own surface morphology. The series label describes inflectional organization, not an independent tense meaning.
Secondary Endings
**Secondary endings** is likewise a traditional **morphological ending-series** label, not simply 'past endings.' In the thematic imperfect (and ordinary thematic second-aorist active) the familiar active surface pattern is **-ον, -ες, -ε(ν), -ομεν, -ετε, -ον**, while the imperfect middle/passive pattern is **-μην, -ου, -το, -μεθα, -σθε, -ντο**. These surface forms must not be generalized to every past-indicative system: first-aorist active, aorist passive, and pluperfect formations have their own system-specific morphology.
Syllabic Augment
The **syllabic augment** is the prefix **ἐ-** used characteristically with many consonant-initial **past-indicative / secondary-system** forms: **λύω → ἔλυον**, **γράφω → ἔγραφον**, **πιστεύω → ἐπίστευον**. The augment is a morphological feature of these formations. Imperfect and aorist indicatives are strongly associated with past temporal reference, but the augment should not be treated as a freestanding lexical morpheme whose entire meaning is simply 'past'.
Temporal Augment
When a verb begins with a **vowel**, the augment **lengthens** that vowel rather than adding ἐ-: this is the **temporal augment**. The lengthening rules: α→η, ε→η, ο→ω, ι→ῑ, υ→ῡ, αυ→ηυ ( ει, ου, η are already long and stay; αι→ῃ, οι→ῳ). Examples: **ἀγαπάω → ἠγάπων**, **ὁράω → ὥρων**, **αἰτέω → ᾔτουν**.
Augment in Compound Verbs
Verbs compounded with a prepositional prefix (e.g. **ἐκ-βάλλω** 'throw out', **συν-άγω** 'gather') place the augment **on the verb stem**, between prefix and verb: **ἐξ-έ-βαλλον**, **συν-ήγαγον**. (Note: ἐκ → ἐξ before vowel.) The augment 'internal' position is a hallmark of compound verbs and must be recognized.
Augment Variation in the New Testament
Augment usage shows historical and textual variation in post-Classical Greek, but the pattern should not be reduced to 'the augment became optional.' In New Testament and broader Koine evidence, augmented forms remain central to the imperfect and aorist indicative, while variation can depend on **lexeme, compound structure, register, textual transmission, and period**. When an unaugmented form is encountered, it should be identified from attestation and context rather than generated from a blanket rule that Koine had reduced the augment to a mere spelling convention.
Irregular Present Stems
Some verbs have **irregular or morphologically expanded present-system stems**. For example, **γίνομαι** contains present-system material not transparently preserved in all other tense systems. Such verbs are treated more fully with irregular and suppletive paradigms in Chapter 31. **Principal parts** expose the major tense-system stems and many important irregularities, but they do not guarantee that every form of every defective, suppletive, media-tantum, multiply formed, or otherwise exceptional lexeme can be predicted mechanically from six citation forms.
Paradigms
Present Active Indicative of λύω
Present stem + thematic vowel + primary active endings. The dictionary form (lemma) is the 1 sg.
| Person | Singular | Plural |
| 1st | λύω 1 sg. I loose | λύομεν 1 pl. we loose |
|---|---|---|
| 2nd | λύεις 2 sg. you loose | λύετε 2 pl. you (pl.) loose |
| 3rd | λύει 3 sg. he/she/it looses | λύουσι(ν) 3 pl. they loose |
Present Middle/Passive Indicative of λύω
Present middle and passive share the same formal inflection in this paradigm. Identify the morphology first; interpret the form through the **lexeme, construction, argument structure, and context** rather than assuming a fixed reflexive or passive meaning.
| Person | Singular | Plural |
| 1st | λύομαι 1 sg. illustrative: 'I am being loosed' / middle reading as context permits | λυόμεθα 1 pl. |
|---|---|---|
| 2nd | λύῃ 2 sg. | λύεσθε 2 pl. |
| 3rd | λύεται 3 sg. | λύονται 3 pl. |
Imperfect Active Indicative of λύω
Augment + present-system stem + thematic imperfect/secondary-series morphology. The imperfect has **imperfective viewpoint** and in the indicative is **typically associated with past temporal reference**; specific ongoing, habitual, iterative, or conative readings are contextual.
| Person | Singular | Plural |
| 1st | ἔλυον 1 sg. I was loosing | ἐλύομεν 1 pl. |
|---|---|---|
| 2nd | ἔλυες 2 sg. | ἐλύετε 2 pl. |
| 3rd | ἔλυε(ν) 3 sg. | ἔλυον 3 pl. |
Imperfect Middle/Passive Indicative of λύω
Augment + present stem + thematic vowel + secondary middle/passive endings.
| Person | Singular | Plural |
| 1st | ἐλυόμην 1 sg. | ἐλυόμεθα 1 pl. |
|---|---|---|
| 2nd | ἐλύου 2 sg. | ἐλύεσθε 2 pl. |
| 3rd | ἐλύετο 3 sg. | ἐλύοντο 3 pl. |
Present & Imperfect of ἀγαπάω (contract verb)
Present contraction: **ἀγαπά-ω → ἀγαπῶ**, **ἀγαπά-εις → ἀγαπᾷς**. The imperfect adds past-indicative morphology to the contract present system: **ἀγαπάω → ἠγάπων** (temporal augment of initial α- plus contracted imperfect formation). The malformed sequence *ἀγαπά-ετον → ἠγάπων* is not part of the derivation.
| Person | Present active | Imperfect active |
| 1 sg. | ἀγαπῶ 1 sg. pres. I love | ἠγάπων 1 sg. impf. I was loving |
|---|---|---|
| 2 sg. | ἀγαπᾷς | ἠγάπας |
| 3 sg. | ἀγαπᾷ | ἠγάπα |
| 1 pl. | ἀγαπῶμεν | ἠγαπῶμεν |
| 2 pl. | ἀγαπᾶτε | ἠγαπᾶτε |
| 3 pl. | ἀγαπῶσι(ν) | ἠγάπων |
Chapter glossary
- λύω — I loose
lyō
verb
The standard teaching verb for present/imperfect paradigms.- ἀγαπάω — I love
agapaō
verb
Contract -άω verb; one of the most theologically important NT verbs.- γράφω — I write
graphō
verb
Regular thematic verb; aorist ἔγραψα (with σ).- — present
verb
Present-system tense-form with imperfective viewpoint; in the indicative it is typically associated with present/nonpast temporal reference, while contextual use may be ongoing, habitual, gnomic, historical-present, or otherwise.- — imperfect
verb
Imperfect-system tense-form with imperfective viewpoint; in the indicative it is typically associated with past temporal reference. Ongoing, habitual/repeated, conative, backgrounding, and related readings are contextual.- — augment
verb
Syllabic ἐ- or corresponding vowel-lengthening morphology characteristic of many past-indicative / secondary-system formations; it correlates strongly with past reference but is not a freestanding lexical morpheme meaning 'past'.- — syllabic augment
verb
Syllabic augment: ἐ- prefixed characteristically to many consonant-initial past-indicative / secondary-system forms, e.g. λύω → ἔλυον.- — temporal augment
verb
Temporal augment: lengthening of an initial vowel in characteristic past-indicative / secondary-system formation, e.g. ἀγαπάω → ἠγάπων; a morphological formation, not an independent tense meaning.- — thematic vowel
verb
The alternating ο/ε thematic vowel used between tense-system stem and inflection in specified thematic formations; it is not itself a tense or aspect marker and is not present in every form of every lexeme.