ihr

See also: Ihr and IHR

GermanEdit

ihr pl

German personal pronouns

		nominative	accusative	genitive	dative	possessive
1st person singular		ich	mich	meiner mein3	mir	mein
2nd person singular (familiar)1		du (-e)	dich	deiner dein3	dir	dein
3rd person singular	m	er	ihn	seiner sein3	ihm	sein
	f	sie		ihrer	ihr
	n	es		seiner sein3	ihm	sein
1st person plural		wir (mir)	uns	unser	uns	unser
2nd person plural (familiar)1		ihr	euch	euer	euch	euer
2nd person sg. or pl. (elevated2)	verbs conjugated according to 2nd person pl. ihr	Ihr	Euch	Euer	Euch	Euer
3rd person plural		sie		ihrer	ihnen	ihr
2nd person sg. or pl. (polite)	verbs conjugated according to 3rd person pl. sie	Sie		Ihrer	Ihnen	Ihr

¹often capitalized, especially in letters ²archaic (ihrzen) ³dated

In older language the genitive is also written ewer and the accusative and dative sometimes ewch.

This form is the plural of du, which is used chiefly towards people with whom one is privately acquainted (see there). One uses ihr towards a group of people if one would address every individual in that group with du. However, the plural ihr is somewhat less familiar than the singular du, meaning that it can sometimes be used in semi-formal situations where du towards an individual would not be appropriate. Learners should still, in any case of doubt, use Sie in order to be on the safe side.
The form Ihr (capitalized in writing) was formerly the polite second-person form for both singular and plural (compare French vous and Early Modern English you) and was used instead of contemporary Sie. Such usage still survives dialectally in some areas, and is encountered in historical contexts (e.g. fiction taking place in the distant past), but is otherwise rarely heard in standard German.
As with all personal pronouns, the genitive case is very rare. It is used only in literary and formal style as a genitive object with: verbs such as entbehren and gedenken; and certain adjectives.
In the late 18th century and in the first half of the 19th century, the genitive was also eurer instead of euer, e.g. ich erinnere mich eurer instead of ich erinnere mich euer.^[1]^[2]^[3]^[4]^[5]

ihr

dative of sie
Hast du ihr das Buch gegeben?
Did you give her the book?

ihr

her (possessive)
its (when the owning object/article/thing/animal etc., referred to, is feminine)

ihr

^ Karl Ferdinand Becker: Schulgrammatik der deutschen Sprache. Vierte neubearbeitete Ausgabe. Frankfurt am Main, 1839, p. 143.
^ Johann Wolfgang von Goethe, in Götz von Berlichingen: „Götz. Ich erinnere mich eurer nicht.“
^ Shakspeare, translated by Aug. Wilh. v. Schlegel and Ludwig Tieck, in Maaß für Maaß: „Herzog. Ich erinnere mich eurer, Herr, an dem Ton eurer Stimme[.]“
^ Konrad Duden: Vollständiges Orthographisches Wörterbuch der deutschen Sprache. Sechste, verbesserte und vermehrte Auflage. Leipzig and Wien, 1900, p. 102: „euer (Genitiv von ihr); euer (nicht: eurer) sind drei; ich erinnere mich euer (nicht: eurer)“
^ Wahrig: Die deutsche Rechtschreibung. Band 1: A–K. Bertelsmann Lexikon Institut, 2007, p. 529: „ich gedenke euer, ich erinnere mich euer (falsch: eurer)“