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Third-IO Conjugation Verbs

List of third-IO conjugation verbs and their grammar.

Ending Pattern

  • -iō, -ere (capio, capere)

Present Indicative Chart

Singular Plural
1st -iō -imus
2nd -is -itis
3rd. -it -iunt

Present Imperative Chart

2nd Singular Plural
stem + e stem + ite

Present Active Infinitive Chart

Latin Form English Translation
stem + re to verb
Ex: capere to capture

Present Passive Infinitive Chart

Latin Form English Translation
stem + i to be verbed
Ex: capi to be captured

Imperfect Indicative Chart

Singular Plural
1st -iebam -iebamus
2nd -iebas -iebatis
3rd. -iebat -iebant

Future Indicative Chart

Singular Plural
1st -iam -iemus
2nd -ies -ietis
3rd. -iet -ient

Perfect Active Indicative Chart

I have verbed; I verbed
Singular Plural
1st -ī -imus
2nd -istī -istis
3rd. -it -ērunt

Pluperfect Active Indicative Chart

I had verbed
Singular Plural
1st -eram -erāmus
2nd -erās -erātis
3rd. -erat -erant

Future Perfect Active Indicative Chart

I shall have verbed
Singular Plural
1st -erō -erimus
2nd -eris -eritis
3rd. -erit -erint

Present Indicative Passive

I am (being) verbed
Singular Plural
1st -ior -imur
2nd -eris -iminī
3rd. -itur -iuntur

Imperfect Indicative Passive

I was (being) verbed, used to be verbed
Singular Plural
1st -iebar -iebamur
2nd -iebaris -iebaminī
3rd. -iebatur -iebantur

Future Indicative Passive

I will be verbed
Singular Plural
1st -iar -iemur
2nd -iēris -ieminī
3rd. -ietur -ientur

Perfect Indicative Passive

I was verbed, have been verbed
Singular Plural
1st (4th principal stem + -us/-a/-um) sum (4th principal stem + -i/-ae/-a) sumus
2nd (4th principal stem + -us/-a/-um) es (4th principal stem + -i/-ae/-a) estis
3rd. (4th principal stem + -us/-a/-um) est (4th principal stem + -i/-ae/-a) sunt

Pluperfect Perfect Indicative Passive

I had been verbed
Singular Plural
1st (4th principal stem + -us/-a/-um) eram (4th principal stem + -i/-ae/-a) eramus
2nd (4th principal stem + -us/-a/-um) erās (4th principal stem + -i/-ae/-a) erātis
3rd. (4th principal stem + -us/-a/-um) erat (4th principal stem + -i/-ae/-a) erant

Future Perfect Indicative Passive

I will have been verbed
Singular Plural
1st (4th principal stem + -us/-a/-um) erō (4th principal stem + -i/-ae/-a) erimus
2nd (4th principal stem + -us/-a/-um) eris (4th principal stem + -i/-ae/-a) eritis
3rd. (4th principal stem + -us/-a/-um) erit (4th principal stem + -i/-ae/-a) erunt

List of Third-IO Conjugation Verbs

Term Definition Derivatives
capio, capere, cepi, captum to take, capture, seize, get capable, capsule, captor, captive
facio, facere, feci, factum to make, do, accompish facile, fact, faction, factotum, faculty, fashion, feasible
fugio, fugere, fugi, fugiturum to flee, hurry away; escape; go into exile; avoid, shun fugitive, fugue, refuge, subterfuge
iaciō, iacere, iēcī, iactum to throw, hurl abject, adjective, conjecture, dejected, eject, inject, interject, object, project, reject, subject, trajectory
coepī, coepisse, coeptum began, defective verb used in the perf. system only.

the present system is supplied by incipiō 		-
cupiō, cupere, cupīvī, cupītum to desire, wish, long for Cupid, cupidity, concupiscence, covet, covetous, Kewpie doll
incipiō, incipere, incēpī, inceptum to begin incipient, inception
rapiō, rapere, rapuī, raptum to seize, snatch, carry away rapacious, rapid, rapine, rapture, ravage, ravish
ēripiō, ēripere, ēripuī, ēreptum to snatch away, take away; rescue -