From Wiktionary, the free dictionary
sur- + veillier
surveillier
to keep watch over
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. The forms that would normally end in *-eill , *-eills , *-eillt are modified to eil , euz , eut . Old French conjugation varies significantly by date and by region. The following conjugation should be treated as a guide.
simple
compound
infinitive
surveillier
avoir surveillié
gerund
en surveillant
gerund of avoir + past participle
present participle
surveillant
past participle
surveillié
person
singular
plural
first
second
third
first
second
third
indicative
jo
tu
il
nos
vos
il
simple tenses
present
surveil
surveilles
surveille
surveillons
surveilliez
surveillent
imperfect
surveilloie , surveilleie , surveilloe , surveillieve
surveilloies , surveilleies , surveilloes , surveillieves
surveilloit , surveilleit , surveillot , surveillieve
surveilliiens , surveilliens
surveilliiez , surveilliez
surveilloient , surveilleient , surveilloent , surveillievent
preterite
surveillai
surveillas
surveilla
surveillames
surveillastes
surveillierent
future
surveillerai
surveilleras
surveillera
surveillerons
surveilleroiz , surveillereiz , surveillerez
surveilleront
conditional
surveilleroie , surveillereie
surveilleroies , surveillereies
surveilleroit , surveillereit
surveilleriiens , surveilleriens
surveilleriiez , surveilleriez
surveilleroient , surveillereient
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
surveil
surveuz
surveut
surveillons
surveilliez
surveillent
imperfect
surveillasse
surveillasses
surveillast
surveillissons , surveillissiens
surveillissoiz , surveillissez , surveillissiez
surveillassent
compound tenses
past
present subjunctive of avoir + past participle
pluperfect
imperfect subjunctive of avoir + past participle
imperative
–
tu
–
nos
vos
–
—
surveille
—
surveillons
surveilliez
—