This verb conjugates as a first-group verb ending in -ier, with a palatal stem. These verbs are conjugated mostly like verbs in -er, but there is an extra i before the e of some endings. This is an irregular verb with a stressed stem containing an extra syllable: aiu-. Early versions had the stressed stem aiuḍ-, this -ḍ- is the reason the second person singular subjunctive ends in -z. The alternative form of the third person singular subjunctive present aïst and other stems in aï- is rather a reflex from shortened Vulgar Latin *adiŭtet. It is cognate with Spanish ayudar and Italian aiutare. Old French conjugation varies significantly by date and by region. The following conjugation should be treated as a guide.
simple | compound | ||||||
---|---|---|---|---|---|---|---|
infinitive | fro-conj-aidier | avoir aidié | |||||
gerund | en aidant | gerund of avoir + past participle | |||||
present participle | aidant | ||||||
past participle | aidié | ||||||
person | singular | plural | |||||
first | second | third | first | second | third | ||
indicative | jo | tu | il | nos | vos | il | |
simple tenses |
present | aiu, aï | aiues, aïes | aiue, aïe | aidons | aidiez | aiuent, aïent |
imperfect | aidoie, aideie, aidoe, aidieve | aidoies, aideies, aidoes, aidieves | aidoit, aideit, aidot, aidieve | aidiiens, aidiens | aidiiez, aidiez | aidoient, aideient, aidoent, aidievent | |
preterite | aidai | aidas | aida | aidames | aidastes | aidierent | |
future | aiderai | aideras | aidera | aiderons | aideroiz, aidereiz, aiderez | aideront | |
conditional | aideroie, aidereie | aideroies, aidereies | aideroit, aidereit | aideriiens, aideriens | aideriiez, aideriez | aideroient, aidereient | |
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 | aiu, aï | aiuz, aïz | aiut, aït, aïst, aïe | aidons | aidiez | aiuent, aïent |
imperfect | aidasse | aidasses | aidast | aidissons, aidissiens | aidissoiz, aidissez, aidissiez | aidassent | |
compound tenses |
past | present subjunctive of avoir + past participle | |||||
pluperfect | imperfect subjunctive of avoir + past participle | ||||||
imperative | – | tu | – | nos | vos | – | |
— | aiue, aïe | — | aidons | aidiez | — |