cogito: all forms
cogito means “think, consider”. Below is its full conjugation in Latin.
Present active
Present active | Indicative | Subjunctive | Imperative |
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| 1st singular | cogito | cogitem | |
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| 2nd singular | cogitas | cogites | cogita |
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| 3rd singular | cogitat | cogitet | |
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| 1st plural | cogitamus | cogitemus | |
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| 2nd plural | cogitatis | cogitetis | cogitate |
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| 3rd plural | cogitant | cogitent | |
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Present passive
Present passive | Indicative | Subjunctive | Imperative |
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| 1st singular | cogitor | cogiter | |
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| 2nd singular | cogitaris | cogitere · cogiteris | cogitare |
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| 3rd singular | cogitatur | cogitetur | |
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| 1st plural | cogitamur | cogitemur | |
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| 2nd plural | cogitamini | cogitemini | cogitamini |
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| 3rd plural | cogitantur | cogitentur | |
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Imperfect active
Imperfect active | Indicative | Subjunctive |
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| 1st singular | cogitabam | cogitarem |
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| 2nd singular | cogitabas | cogitares |
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| 3rd singular | cogitabat | cogitaret |
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| 1st plural | cogitabamus | cogitaremus |
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| 2nd plural | cogitabatis | cogitaretis |
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| 3rd plural | cogitabant | cogitarent |
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Imperfect passive
Imperfect passive | Indicative | Subjunctive |
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| 1st singular | cogitabar | cogitarer |
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| 2nd singular | cogitabare · cogitabaris | cogitarere · cogitareris |
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| 3rd singular | cogitabatur | cogitaretur |
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| 1st plural | cogitabamur | cogitaremur |
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| 2nd plural | cogitabamini | cogitaremini |
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| 3rd plural | cogitabantur | cogitarentur |
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Future active
Future active | Indicative | Imperative |
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| 1st singular | cogitabo | |
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| 2nd singular | cogitabis | cogitato |
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| 3rd singular | cogitabit | cogitato |
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| 1st plural | cogitabimus | |
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| 2nd plural | cogitabitis | cogitatote |
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| 3rd plural | cogitabunt | cogitanto |
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Future passive
Future passive | Indicative | Imperative |
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| 1st singular | cogitabor | |
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| 2nd singular | cogitabere · cogitaberis | cogitator |
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| 3rd singular | cogitabitur | cogitator |
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| 1st plural | cogitabimur | |
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| 2nd plural | cogitabimini | |
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| 3rd plural | cogitabuntur | cogitantor |
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Perfect active
Perfect active | Indicative | Subjunctive |
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| 1st singular | cogitavi | cogitaverim |
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| 2nd singular | cogitavisti | cogitaveris |
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| 3rd singular | cogitavit | cogitaverit |
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| 1st plural | cogitavimus | cogitaverimus |
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| 2nd plural | cogitavistis | cogitaveritis |
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| 3rd plural | cogitaverunt · cogitavere | cogitaverint |
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Pluperfect active
Pluperfect active | Indicative | Subjunctive |
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| 1st singular | cogitaveram | cogitavissem |
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| 2nd singular | cogitaveras | cogitavisses |
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| 3rd singular | cogitaverat | cogitavisset |
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| 1st plural | cogitaveramus | cogitavissemus |
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| 2nd plural | cogitaveratis | cogitavissetis |
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| 3rd plural | cogitaverant | cogitavissent |
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Future perfect active
Future perfect active | Indicative |
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| 1st singular | cogitavero |
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| 2nd singular | cogitaveris |
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| 3rd singular | cogitaverit |
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| 1st plural | cogitaverimus |
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| 2nd plural | cogitaveritis |
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| 3rd plural | cogitaverint |
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Infinitives
Infinitives | Active | Passive |
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| Present | cogitare | cogitari |
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| Perfect | cogitavisse | |
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Participles
Present active participle, singular | Neuter | Forms |
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| Nominative | | cogitans |
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| Genitive | | cogitantis |
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| Dative | | cogitanti |
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| Accusative | cogitans | cogitantem |
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| Ablative | | cogitanti · cogitante |
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| Vocative | | cogitans |
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Present active participle, plural | Neuter | Forms |
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| Nominative | cogitantia | cogitantes |
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| Genitive | | cogitantium |
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| Dative | | cogitantibus |
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| Accusative | cogitantia | cogitantes |
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| Ablative | | cogitantibus |
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| Vocative | cogitantia | cogitantes |
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Future active participle, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogitaturus | cogitatura | cogitaturum | |
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| Genitive | cogitaturi | cogitaturae | cogitaturi | |
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| Dative | cogitaturo | cogitaturae | cogitaturo | |
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| Accusative | cogitaturum | cogitaturam | cogitaturum | |
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| Ablative | cogitaturo | cogitatura | cogitaturo | |
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| Vocative | cogitature | cogitatura | cogitaturum | |
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Future active participle, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogitaturi | cogitaturae | cogitatura | |
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| Genitive | cogitaturorum | cogitaturarum | cogitaturorum | |
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| Dative | | | | cogitaturis |
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| Accusative | cogitaturos | cogitaturas | cogitatura | |
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| Ablative | | | | cogitaturis |
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| Vocative | cogitaturi | cogitaturae | cogitatura | |
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Perfect passive participle, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogitatus | cogitata | cogitatum | |
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| Genitive | cogitati | cogitatae | cogitati | |
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| Dative | cogitato | cogitatae | cogitato | |
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| Accusative | cogitatum | cogitatam | cogitatum | |
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| Ablative | cogitato | cogitata | cogitato | |
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| Vocative | cogitate | cogitata | cogitatum | |
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Perfect passive participle, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogitati | cogitatae | cogitata | |
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| Genitive | cogitatorum | cogitatarum | cogitatorum | |
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| Dative | | | | cogitatis |
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| Accusative | cogitatos | cogitatas | cogitata | |
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| Ablative | | | | cogitatis |
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| Vocative | cogitati | cogitatae | cogitata | |
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Gerund, gerundive and supine
Gerundive, singular | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogitandus | cogitanda | cogitandum | |
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| Genitive | cogitandi | cogitandae | cogitandi | |
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| Dative | cogitando | cogitandae | cogitando | |
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| Accusative | cogitandum | cogitandam | cogitandum | |
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| Ablative | cogitando | cogitanda | cogitando | |
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| Vocative | cogitande | cogitanda | cogitandum | |
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Gerundive, plural | Masculine | Feminine | Neuter | Forms |
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| Nominative | cogitandi | cogitandae | cogitanda | |
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| Genitive | cogitandorum | cogitandarum | cogitandorum | |
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| Dative | | | | cogitandis |
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| Accusative | cogitandos | cogitandas | cogitanda | |
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| Ablative | | | | cogitandis |
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| Vocative | cogitandi | cogitandae | cogitanda | |
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Supine | Forms |
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| Accusative | cogitatum |
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| Ablative | cogitatu |
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Meaning and examples of cogito
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.