cognosco: all forms
cognosco means “get to know, learn; (perf.) know”. Below is its full conjugation in Latin.
Present active
Present active | Indicative | Subjunctive | Imperative |
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| 1st singular | cognosco | cognoscam | |
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| 2nd singular | cognoscis | cognoscas | cognosce · cognosc |
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| 3rd singular | cognoscit | cognoscat | |
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| 1st plural | cognoscimus | cognoscamus | |
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| 2nd plural | cognoscitis | cognoscatis | cognoscite |
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| 3rd plural | cognoscunt | cognoscant | |
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Present passive
Present passive | Indicative | Subjunctive | Imperative |
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| 1st singular | cognoscor | cognoscar | |
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| 2nd singular | cognosceris | cognoscare · cognoscaris | cognoscere |
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| 3rd singular | cognoscitur | cognoscatur | |
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| 1st plural | cognoscimur | cognoscamur | |
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| 2nd plural | cognoscimini | cognoscamini | cognoscimini |
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| 3rd plural | cognoscuntur | cognoscantur | |
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Imperfect active
Imperfect active | Indicative | Subjunctive |
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| 1st singular | cognoscebam | cognoscerem |
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| 2nd singular | cognoscebas | cognosceres |
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| 3rd singular | cognoscebat | cognosceret |
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| 1st plural | cognoscebamus | cognosceremus |
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| 2nd plural | cognoscebatis | cognosceretis |
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| 3rd plural | cognoscebant | cognoscerent |
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Imperfect passive
Imperfect passive | Indicative | Subjunctive |
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| 1st singular | cognoscebar | cognoscerer |
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| 2nd singular | cognoscebare · cognoscebaris | cognoscerere · cognoscereris |
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| 3rd singular | cognoscebatur | cognosceretur |
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| 1st plural | cognoscebamur | cognosceremur |
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| 2nd plural | cognoscebamini | cognosceremini |
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| 3rd plural | cognoscebantur | cognoscerentur |
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Future active
Future active | Indicative | Imperative |
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| 1st singular | cognoscam | |
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| 2nd singular | cognosces | cognoscito |
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| 3rd singular | cognoscet | cognoscito |
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| 1st plural | cognoscemus | |
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| 2nd plural | cognoscetis | cognoscitote |
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| 3rd plural | cognoscent | cognoscunto |
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Future passive
Future passive | Indicative | Imperative |
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| 1st singular | cognoscar | |
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| 2nd singular | cognosceris · cognoscere | cognoscitor |
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| 3rd singular | cognoscetur | cognoscitor |
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| 1st plural | cognoscemur | |
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| 2nd plural | cognoscemini | |
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| 3rd plural | cognoscentur | cognoscuntor |
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Perfect active
Perfect active | Indicative | Subjunctive |
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| 1st singular | cognovi | cognoverim |
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| 2nd singular | cognovisti | cognoveris |
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| 3rd singular | cognovit | cognoverit |
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| 1st plural | cognovimus | cognoverimus |
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| 2nd plural | cognovistis | cognoveritis |
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| 3rd plural | cognoverunt · cognovere | cognoverint |
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Pluperfect active
Pluperfect active | Indicative | Subjunctive |
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| 1st singular | cognoveram | cognovissem |
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| 2nd singular | cognoveras | cognovisses |
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| 3rd singular | cognoverat | cognovisset |
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| 1st plural | cognoveramus | cognovissemus |
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| 2nd plural | cognoveratis | cognovissetis |
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| 3rd plural | cognoverant | cognovissent |
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Future perfect active
Future perfect active | Indicative |
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| 1st singular | cognovero |
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| 2nd singular | cognoveris |
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| 3rd singular | cognoverit |
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| 1st plural | cognoverimus |
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| 2nd plural | cognoveritis |
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| 3rd plural | cognoverint |
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Infinitives
Infinitives | Active | Passive |
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| Present | cognoscere | cognosci |
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| Perfect | cognovisse | |
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Participles
Present active participle, singular | Neuter | Forms |
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| Nominative | | cognoscens |
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| Genitive | | cognoscentis |
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| Dative | | cognoscenti |
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| Accusative | cognoscens | cognoscentem |
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| Ablative | | cognoscente · cognoscenti |
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| Vocative | | cognoscens |
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Present active participle, plural | Neuter | Forms |
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| Nominative | cognoscentia | cognoscentes |
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| Genitive | | cognoscentium |
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| Dative | | cognoscentibus |
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| Accusative | cognoscentia | cognoscentes |
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| Ablative | | cognoscentibus |
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| Vocative | cognoscentia | cognoscentes |
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Future active participle, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogniturus | cognitura | cogniturum | |
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| Genitive | cognituri | cogniturae | cognituri | |
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| Dative | cognituro | cogniturae | cognituro | |
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| Accusative | cogniturum | cognituram | cogniturum | |
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| Ablative | cognituro | cognitura | cognituro | |
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| Vocative | cogniture | cognitura | cogniturum | |
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Future active participle, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | cognituri | cogniturae | cognitura | |
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| Genitive | cogniturorum | cogniturarum | cogniturorum | |
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| Dative | | | | cognituris |
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| Accusative | cognituros | cognituras | cognitura | |
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| Ablative | | | | cognituris |
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| Vocative | cognituri | cogniturae | cognitura | |
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Perfect passive participle, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | cognitus | cognita | cognitum | |
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| Genitive | cogniti | cognitae | cogniti | |
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| Dative | cognito | cognitae | cognito | |
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| Accusative | cognitum | cognitam | cognitum | |
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| Ablative | cognito | cognita | cognito | |
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| Vocative | cognite | cognita | cognitum | |
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Perfect passive participle, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogniti | cognitae | cognita | |
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| Genitive | cognitorum | cognitarum | cognitorum | |
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| Dative | | | | cognitis |
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| Accusative | cognitos | cognitas | cognita | |
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| Ablative | | | | cognitis |
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| Vocative | cogniti | cognitae | cognita | |
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Gerund, gerundive and supine
Gerundive, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | cognoscendus | cognoscenda | cognoscendum | |
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| Genitive | cognoscendi | cognoscendae | cognoscendi | |
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| Dative | cognoscendo | cognoscendae | cognoscendo | |
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| Accusative | cognoscendum | cognoscendam | cognoscendum | |
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| Ablative | cognoscendo | cognoscenda | cognoscendo | |
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| Vocative | cognoscende | cognoscenda | cognoscendum | |
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Gerundive, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | cognoscendi | cognoscendae | cognoscenda | |
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| Genitive | cognoscendorum | cognoscendarum | cognoscendorum | |
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| Dative | | | | cognoscendis |
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| Accusative | cognoscendos | cognoscendas | cognoscenda | |
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| Ablative | | | | cognoscendis |
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| Vocative | cognoscendi | cognoscendae | cognoscenda | |
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Supine | Forms |
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| Accusative | cognitum |
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| Ablative | cognitu |
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Meaning and examples of cognosco
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.