French grammar rules Cheat Sheet (DRAFT) by soleille01

Use: To replace nouns when it is clear who is being talked about.

Conjug­ation: Pronoun + future tense stem + Avoir present tense ending (irreg­ular)
Future tense stem: The full infini­tive.
Meaning: I will verb

Use: For emphasis (e.g. moi, je...), on its own, after a prepos­ition (e.g. avec eux; derriere moi), in comparison (e.g. rapide que toi), to denote belonging (c'est à moi), after 'c'est' and 'ce sont', and combined with 'même' (e.g. moi-même (myself))

Use: To refer to a person­/thing as a recipient of an action. It replaces 'à + noun'.
Word order: The inDOP usually comes directly in front of the verb (e.g. il ne nous parle pas), unless used in positive impera­tives (e.g. montre-le nous). In impera­tives, 'me' and 'te' are also replaced with 'moi' and 'toi' (e.g. donne-moi ça).
TBC

Conjug­ation: Pronoun + present tense stem + imperfect tense ending
Present tense stem: Remove the '-er', '-re' or '-ir' from the end of the infini­tive.
Meaning: I used to verb, I was verb-ing

Future tense stem: the full infini­tive.
Conjug­ation: Pronoun + Future tense stem + Imperfect tense ending
Meaning: I would verb

Use: To replace a person or thing affected by an action when it is clear who/what is being referred to, to avoid excessive repeti­tion.
Word order: The DOP comes directly in front of the verb (e.g. je t'aime), unless in positive impera­tives in which case it comes after the verb (assey­ez-­vous).
TBC

Conjug­ation: Pronoun + Avoir or Être conjug­ation + past participle (present tense stem + past participle ending)
Irregular rule: Conjug­ations that use Être must have the past participle agree with the pronoun.
Present tense stem (past partic­iple): Remove the '-er', '-re', or '-ir' from the end of the infini­tive.
Meaning: I verb -ed, I have verb -ed, I did verb

Word order:
combien: combien + verb; combien de + noun
quoi: quoi + noun
quel, lequel: is made to agree with the object that is asked about
TBC