Dative case exists in some languages, but not in English. In German, 'dem Freund' is dative, but in English, we say 'to the friend'.
Pro Tip 2/3
Use After Verbs
Dative is used after certain verbs to indicate to whom or for whom something is done. In the phrase 'She wrote her friend a letter,' 'her friend' would be dative in some languages.
Pro Tip 3/3
No English Equivalent
English doesn't have a dative case, but knowing it helps understand other languages. Learning dative helps when you study German, Russian, or Latin.