In our first lesson we learned sentences like Das ist mein Koffer. Now we're learning about the accusative, and the teacher told us that for both all cases the suffix of the possessive pronoun ...
I learned that a pronoun should take an ending in accordance with its gender, case, numerus, etc. whenever it refers to some noun in particular - 'Das Auto ist meins' for example. So in the following ...
If I want to say: “He is their son”, which is correct: Er ist ihr Sohn. Er ist deren Sohn. What is the difference (if any) between ihr and deren in the meaning of their?