How’s this for a memory aid (eine Eselsbrücke)?
For the articles and adjective forms for the Dative case with definite articles recite:
Two dems (dames) der (dare) a den (Dane) to a definite dativ (date); they’re all –en (in)
Masculine definite article dative case: dem
Neuter definite article dative case: dem
Feminine definite article dative case: der
Plural definite article dative case: den
When these articles are followed by an adjective, that adjective takes an n/en ending.
Jemand muß dem armen verzweifelten englischsprachigen Mann helfen.
Jemand muß dem armen verzweifelten englischsprachigen Kind helfen.
Jemand muß der armen verzweifelten englischsprachigen Frau helfen.
Jemand muß den armen verzweifelten englischsprachigen Studentinnen helfen.
Perhaps this little mnemonic will be of some help for some other poor and desperate English speaking person, at least when trying to use the dative case with a definite article with verbs like helfen, passen and danken?!
Earthquake Words/Erdbeben Wörter 