French Verb Conjugations
| Present | Imperfect | Future | Conditional | Subjunctive | Imperfect subj. | |||
| j’ | atterris | atterrissais | atterrirai | atterrirais | atterrisse | atterrisse | ||
| tu | atterris | atterrissais | atterriras | atterrirais | atterrisses | atterrisses | ||
| il | atterrit | atterrissait | atterrira | atterrirait | atterrisse | atterrît | ||
| nous | atterrissons | atterrissions | atterrirons | atterririons | atterrissions | atterrissions | ||
| vous | atterrissez | atterrissiez | atterrirez | atterririez | atterrissiez | atterrissiez | ||
| ils | atterrissent | atterrissaient | atterriront | atterriraient | atterrissent | atterrissent | ||
| Passé composé | Past perfect | Future perfect | Past conditional | Past subjunctive | Pluperfect subj. | |||
| j’ | ai atterri | avais atterri | aurai atterri | aurais atterri | aie atterri | eusse atterri | ||
| tu | as atterri | avais atterri | auras atterri | aurais atterri | aies atterri | eusses atterri | ||
| il | a atterri | avait atterri | aura atterri | aurait atterri | ait atterri | eût atterri | ||
| nous | avons atterri | avions atterri | aurons atterri | aurions atterri | ayons atterri | eussions atterri | ||
| vous | avez atterri | aviez atterri | aurez atterri | auriez atterri | ayez atterri | eussiez atterri | ||
| ils | ont atterri | avaient atterri | auront atterri | auraient atterri | aient atterri | eussent atterri | ||
| Passé simple | Past anterior | Imperative | Participles | |||||
| j’ | atterris | eus atterri | (tu) | atterris | Present | atterrissant | ||
| tu | atterris | eus atterri | (nous) | atterrissons | Past | atterri | ||
| il | atterrit | eut atterri | (vous) | atterrissez | Perfect | ayant atterri | ||
| nous | atterrîmes | eûmes atterri | Past imperative | |||||
| vous | atterrîtes | eûtes atterri | (tu) | aie atterri | Past infinitive | |||
| ils | atterrirent | eurent atterri | (nous) | ayons atterri | avoir atterri | |||
| (vous) | ayez atterri | |||||||
Atterrir is a regular -ir verb.


Subordinating conjunctions connect two unequal clauses: a main clause and a dependent or subordinate clause.

The Subjunctivisor is an interactive tool that will advise you on whether to use the subjunctive or indicative with more than 275 French verbs, expressions, and conjunctions.
Knowing whether to use the passé composé or imparfait is particularly difficult when translating certain verbs into French. Very broadly speaking, the imperfect is equivalent to was/were + ___ing, but some English verbs are not often used in this form. So when translating was, had, and liked into French, you have to think about the meaning in order to decide which tense to use.