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  1. (obsolete) first-person singular present indicative of cognoscere



From con- (with) +‎ (g)nōscō (know).



cognōscō (present infinitive cognōscere, perfect active cognōvī, supine cognitum); third conjugation

  1. I learn, get to know
  2. I am acquainted (with), I recognize
  3. (in perfect tense) I know


   Conjugation of cognōscō (third conjugation)
indicative singular plural
first second third first second third
active present cognōscō cognōscis cognōscit cognōscimus cognōscitis cognōscunt
imperfect cognōscēbam cognōscēbās cognōscēbat cognōscēbāmus cognōscēbātis cognōscēbant
future cognōscam cognōscēs cognōscet cognōscēmus cognōscētis cognōscent
perfect cognōvī cognōvistī, cognōstī1 cognōvit cognōvimus cognōvistis, cognōstis1 cognōvērunt, cognōvēre
pluperfect cognōveram cognōverās cognōverat cognōverāmus cognōverātis cognōverant
future perfect cognōverō cognōveris cognōverit cognōverimus cognōveritis cognōverint
passive present cognōscor cognōsceris, cognōscere cognōscitur cognōscimur cognōsciminī cognōscuntur
imperfect cognōscēbar cognōscēbāris, cognōscēbāre cognōscēbātur cognōscēbāmur cognōscēbāminī cognōscēbantur
future cognōscar cognōscēris, cognōscēre cognōscētur cognōscēmur cognōscēminī cognōscentur
perfect cognitus + present active indicative of sum
pluperfect cognitus + imperfect active indicative of sum
future perfect cognitus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present cognōscam cognōscās cognōscat cognōscāmus cognōscātis cognōscant
imperfect cognōscerem cognōscerēs cognōsceret cognōscerēmus cognōscerētis cognōscerent
perfect cognōverim cognōverīs cognōverit cognōverīmus cognōverītis cognōverint
pluperfect cognōvissem, cognōssem1 cognōvissēs, cognōssēs1 cognōvisset, cognōsset1 cognōvissēmus, cognōssēmus1 cognōvissētis, cognōssētis1 cognōvissent, cognōssent1
passive present cognōscar cognōscāris, cognōscāre cognōscātur cognōscāmur cognōscāminī cognōscantur
imperfect cognōscerer cognōscerēris, cognōscerēre cognōscerētur cognōscerēmur cognōscerēminī cognōscerentur
perfect cognitus + present active subjunctive of sum
pluperfect cognitus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present cognōsce cognōscite
future cognōscitō cognōscitō cognōscitōte cognōscuntō
passive present cognōscere cognōsciminī
future cognōscitor cognōscitor cognōscuntor
non-finite forms active passive
present perfect future present perfect future
infinitives cognōscere cognōvisse, cognōsse1 cognitūrum esse cognōscī cognitum esse cognitum īrī
participles cognōscēns cognitūrus cognitus cognōscendus, cognōscundus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
cognōscendī cognōscendō cognōscendum cognōscendō cognitum cognitū

1At least one rare poetic syncopated perfect form is attested.

Derived terms[edit]