épaissir
This is a regular verb of the second conjugation, like finir, choisir, and most other verbs with infinitives ending in -ir. One salient feature of this conjugation is the repeated appearance of the infix -iss-.
| infinitive | simple | épaissir | |||||
|---|---|---|---|---|---|---|---|
| compound | avoir + past participle | ||||||
| present participle or gerund1 | simple | épaississant /e.pɛ.si.sɑ̃/ or /e.pe.si.sɑ̃/ | |||||
| compound | ayant + past participle | ||||||
| past participle | épaissi /e.pɛ.si/ or /e.pe.si/ | ||||||
| singular | plural | ||||||
| first | second | third | first | second | third | ||
| indicative | je (j’) | tu | il, elle, on | nous | vous | ils, elles | |
| (simple tenses) |
present | épaissis /e.pɛ.si/ or /e.pe.si/ |
épaissis /e.pɛ.si/ or /e.pe.si/ |
épaissit /e.pɛ.si/ or /e.pe.si/ |
épaississons /e.pɛ.si.sɔ̃/ or /e.pe.si.sɔ̃/ |
épaississez /e.pɛ.si.se/ or /e.pe.si.se/ |
épaississent /e.pɛ.sis/ or /e.pe.sis/ |
| imperfect | épaississais /e.pɛ.si.sɛ/ or /e.pe.si.sɛ/ |
épaississais /e.pɛ.si.sɛ/ or /e.pe.si.sɛ/ |
épaississait /e.pɛ.si.sɛ/ or /e.pe.si.sɛ/ |
épaississions /e.pɛ.si.sjɔ̃/ or /e.pe.si.sjɔ̃/ |
épaississiez /e.pɛ.si.sje/ or /e.pe.si.sje/ |
épaississaient /e.pɛ.si.sɛ/ or /e.pe.si.sɛ/ | |
| past historic2 | épaissis /e.pɛ.si/ or /e.pe.si/ |
épaissis /e.pɛ.si/ or /e.pe.si/ |
épaissit /e.pɛ.si/ or /e.pe.si/ |
épaissîmes /e.pɛ.sim/ or /e.pe.sim/ |
épaissîtes /e.pɛ.sit/ or /e.pe.sit/ |
épaissirent /e.pɛ.siʁ/ or /e.pe.siʁ/ | |
| future | épaissirai /e.pɛ.si.ʁe/ or /e.pe.si.ʁe/ |
épaissiras /e.pɛ.si.ʁa/ or /e.pe.si.ʁa/ |
épaissira /e.pɛ.si.ʁa/ or /e.pe.si.ʁa/ |
épaissirons /e.pɛ.si.ʁɔ̃/ or /e.pe.si.ʁɔ̃/ |
épaissirez /e.pɛ.si.ʁe/ or /e.pe.si.ʁe/ |
épaissiront /e.pɛ.si.ʁɔ̃/ or /e.pe.si.ʁɔ̃/ | |
| conditional | épaissirais /e.pɛ.si.ʁɛ/ or /e.pe.si.ʁɛ/ |
épaissirais /e.pɛ.si.ʁɛ/ or /e.pe.si.ʁɛ/ |
épaissirait /e.pɛ.si.ʁɛ/ or /e.pe.si.ʁɛ/ |
épaissirions /e.pɛ.si.ʁjɔ̃/ or /e.pe.si.ʁjɔ̃/ |
épaissiriez /e.pɛ.si.ʁje/ or /e.pe.si.ʁje/ |
épaissiraient /e.pɛ.si.ʁɛ/ or /e.pe.si.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 | épaississe /e.pɛ.sis/ or /e.pe.sis/ |
épaississes /e.pɛ.sis/ or /e.pe.sis/ |
épaississe /e.pɛ.sis/ or /e.pe.sis/ |
épaississions /e.pɛ.si.sjɔ̃/ or /e.pe.si.sjɔ̃/ |
épaississiez /e.pɛ.si.sje/ or /e.pe.si.sje/ |
épaississent /e.pɛ.sis/ or /e.pe.sis/ |
| imperfect2 | épaississe /e.pɛ.sis/ or /e.pe.sis/ |
épaississes /e.pɛ.sis/ or /e.pe.sis/ |
épaissît /e.pɛ.si/ or /e.pe.si/ |
épaississions /e.pɛ.si.sjɔ̃/ or /e.pe.si.sjɔ̃/ |
épaississiez /e.pɛ.si.sje/ or /e.pe.si.sje/ |
épaississent /e.pɛ.sis/ or /e.pe.sis/ | |
| (compound tenses) |
past | present subjunctive of avoir + past participle | |||||
| pluperfect2 | imperfect subjunctive of avoir + past participle | ||||||
| imperative | – | – | – | ||||
| simple | — | épaissis /e.pɛ.si/ or /e.pe.si/ |
— | épaississons /e.pɛ.si.sɔ̃/ or /e.pe.si.sɔ̃/ |
épaississez /e.pɛ.si.se/ or /e.pe.si.se/ |
— | |
| 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:
(Christopher Kendris , Master the Basics: French, pp. 77, 78, 79, 81). | |||||||