Ich habe eine frage, bitte....
What is the difference between using "nicht" and "ken"? Can they be used interchangeable?
Ich bin nicht müde --could you use "kein" here?
I understand that kein can be used when there is an indefinite article, but there are lots of examples where it is used and no article would be necessary.
On another note,being successful with the grammar really means we need to know the gender of nouns very well. Often we are presented with vocab with no gender attached. Usually I look it up myself and then add it to the vocabulary tool--but it would be great if every noun that was presented was with the gender.