dérailler

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French

Etymology

From dé- +‎ rail +‎ -er.

Pronunciation

  • IPA(key): /de.ʁa.je/ ~ /de.ʁɑ.je/
  • Audio:(file)

Verb

dérailler

  1. (intransitive) to derail, be derailed (all senses)
  2. (intransitive, informal) to be off one's rocker

Conjugation

Conjugation of dérailler (see also Appendix:French verbs)
infinitive simple dérailler
compound avoir + past participle
present participle or gerund1 simple déraillant
/de.ʁa.jɑ̃/
compound ayant + past participle
past participle déraillé
/de.ʁa.je/
singular plural
first second third first second third
indicative je (j’) tu il, elle, on nous vous ils, elles
(simple
tenses) 		present déraille
/de.ʁaj/ 		dérailles
/de.ʁaj/ 		déraille
/de.ʁaj/ 		déraillons
/de.ʁa.jɔ̃/ 		déraillez
/de.ʁa.je/ 		déraillent
/de.ʁaj/
imperfect déraillais
/de.ʁa.jɛ/ 		déraillais
/de.ʁa.jɛ/ 		déraillait
/de.ʁa.jɛ/ 		déraillions
/de.ʁaj.jɔ̃/ 		dérailliez
/de.ʁaj.je/ 		déraillaient
/de.ʁa.jɛ/
past historic2 déraillai
/de.ʁa.je/ 		déraillas
/de.ʁa.ja/ 		dérailla
/de.ʁa.ja/ 		déraillâmes
/de.ʁa.jam/ 		déraillâtes
/de.ʁa.jat/ 		déraillèrent
/de.ʁa.jɛʁ/
future déraillerai
/de.ʁaj.ʁe/ 		dérailleras
/de.ʁaj.ʁa/ 		déraillera
/de.ʁaj.ʁa/ 		déraillerons
/de.ʁaj.ʁɔ̃/ 		déraillerez
/de.ʁaj.ʁe/ 		dérailleront
/de.ʁaj.ʁɔ̃/
conditional déraillerais
/de.ʁaj.ʁɛ/ 		déraillerais
/de.ʁaj.ʁɛ/ 		déraillerait
/de.ʁaj.ʁɛ/ 		déraillerions
/de.ʁa.jə.ʁjɔ̃/ 		dérailleriez
/de.ʁa.jə.ʁje/ 		dérailleraient
/de.ʁaj.ʁɛ/
(compound
tenses) 		present perfect present indicative of avoir + past participle
pluperfect imperfect indicative of avoir + past participle
past anterior2 past historic of avoir + past participle
future perfect future of avoir + past participle
conditional perfect conditional of avoir + past participle
subjunctive que je (j’) que tu qu’il, qu’elle que nous que vous qu’ils, qu’elles
(simple
tenses) 		present déraille
/de.ʁaj/ 		dérailles
/de.ʁaj/ 		déraille
/de.ʁaj/ 		déraillions
/de.ʁaj.jɔ̃/ 		dérailliez
/de.ʁaj.je/ 		déraillent
/de.ʁaj/
imperfect2 déraillasse
/de.ʁa.jas/ 		déraillasses
/de.ʁa.jas/ 		déraillât
/de.ʁa.ja/ 		déraillassions
/de.ʁa.ja.sjɔ̃/ 		déraillassiez
/de.ʁa.ja.sje/ 		déraillassent
/de.ʁa.jas/
(compound
tenses) 		past present subjunctive of avoir + past participle
pluperfect2 imperfect subjunctive of avoir + past participle
imperative – tu – nous vous –
simple — déraille
/de.ʁaj/ 		— déraillons
/de.ʁa.jɔ̃/ 		déraillez
/de.ʁa.je/ 		—
compound — simple imperative of avoir + past participle — simple imperative of avoir + past participle simple imperative of avoir + past participle —
1 The French gerund is usable only with the preposition en.
2 In less formal writing or speech, these tenses may be found to have been replaced in the following way:
  • past historic → present perfect
  • past anterior → pluperfect
  • imperfect subjunctive → present subjunctive
  • pluperfect subjunctive → past subjunctive

(Christopher Kendris , Master the Basics: French, pp. 77, 78, 79, 81).

Further reading

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