j'

See also: Appendix:Variations of "j"

French

j’ m or f

Je in formal French only becomes j’ before a vowel or an unaspirated h, where this is mandatory in spelling.
In informal French, j’ may optionally be used before consonants, and devoices before unvoiced consonants, thus producing a ʃ sound, as in sheep.
- Before voiced consonants:
  J’vais bien. ― Doing fine.
  
  J’descend tout de suite! ― Coming down!
- whereas before unvoiced consonants:
  Chais pas. (j’sais pas) ― Dunno.
  
  Ch’peux pas. (j’peux pas) ― I can't.
Note that the ch’ spelling is purely oral, it is not used in any type of written content except if one wishes to emphasize the language register spoken or the form is in itself a fixed expression.

French personal pronouns

Number	Person	Gender	Nominative (subject)	Accusative (direct complement)	Dative (indirect complement)	Disjunctive (tonic)
Singular	First	—	je, j’	me, m’		moi
	Second	—	tu	te, t’		toi
	Third	Masculine	il	le, l’	lui	lui
		Feminine	elle	la, l’		elle
		Gender neutral⁵	iel	lea		ellui
		Indeterminate	on¹	—	—	—
		Reflexive	—	se, s’⁴		soi⁴
Plural	First	—	nous	nous		nous
	Second	—	vous²	vous²^,3		vous²
	Third	Masculine	ils³	les	leur	eux
		Feminine	elles			elles
		Gender neutral⁵	iels			elleux

¹ Also used as the first person plural.

² Also used as the polite singular form.

³ Also used when a group has both men and women.

⁴ Also used as third person plural reflexive.

⁵ Colloquial, and not in popular use.

j’