Inherited from Old Catalan sostenir, from Latin sustinēre, with normal change of conjugation to -ir. Compare Occitan sostenir, French soutenir.
sostenir (first-person singular present sostinc, first-person singular preterite sostinguí, past participle sostingut); root stress: (Central, Valencia, Balearic) /e/
sostenir
This verb conjugates as a third-group verb. This verb has a stressed present stem sostien distinct from the unstressed stem sosten, as well as other irregularities. Old French conjugation varies significantly by date and by region. The following conjugation should be treated as a guide.
simple | compound | ||||||
---|---|---|---|---|---|---|---|
infinitive | sostenir | avoir sostenu | |||||
gerund | en sostenant | gerund of avoir + past participle | |||||
present participle | sostenant | ||||||
past participle | sostenu | ||||||
person | singular | plural | |||||
first | second | third | first | second | third | ||
indicative | jo | tu | il | nos | vos | il | |
simple tenses |
present | sostieng, sostien | sostiens | sostient | sostenons | sostenez | sostienent |
imperfect | sostenoie, sosteneie | sostenoies, sosteneies | sostenoit, sosteneit | sosteniiens, sosteniens | sosteniiez, sosteniez | sostenoient, sosteneient | |
preterite | sostin | sostenis | sostint | sostenimes | sostenistes | sostindrent, sostinrent | |
future | sostendrai | sostendras | sostendra | sostendrons | sostendroiz, sostendreiz, sostendrez | sostendront | |
conditional | sostendroie, sostendreie | sostendroies, sostendreies | sostendroit, sostendreit | sostendriiens, sostendriens | sostendriiez, sostendriez | sostendroient, sostendreient | |
compound tenses |
present perfect | present tense of avoir + past participle | |||||
pluperfect | imperfect tense of avoir + past participle | ||||||
past anterior | preterite tense of avoir + past participle | ||||||
future perfect | future tense of avoir + past participle | ||||||
conditional perfect | conditional tense of avoir + past participle | ||||||
subjunctive | que jo | que tu | qu’il | que nos | que vos | qu’il | |
simple tenses |
present | sostiegne | sostiegnes | sostiegne | sostiegniens, sostiegnons | sostiegniez | sostiegnent |
imperfect | sostenisse | sostenisses | sostenist | sostenissons, sostenissiens | sostenissoiz, sostenissez, sostenissiez | sostenissent | |
compound tenses |
past | present subjunctive of avoir + past participle | |||||
pluperfect | imperfect subjunctive of avoir + past participle | ||||||
imperative | – | tu | – | nos | vos | – | |
— | sostien | — | sostenons | sostenez | — |