Bir durak bulup, oh diyemedik. Diyemedik . What is the grammar explanation? demek - di-y-eme-dik or di-ye-me-dik?? Is it we could not say or we did not say?? And what is then translation of the sentence! Thanks very much!

Diyemedik means "we couldn't say". The "e" in bold is the inabilitative suffix.

Here are a few more examples:

gitmedik: we didnt go
gidemedik: we couldn't go

satın almadık : we didn't buy
satın alamadık : we couldn't buy

görmedik : we didn't see
göremedik : we couldn't see

Thanks very much, I was not sure but now I know !

Ooh, this just proves the value of repetition in the posts. I knew this 'e' inabilitative suffix, but I had completely forgotten about it.
Everyday, I like to learn or remember just one small new thing because I dont have time to study all the time. So my learning needs are modest. Just one word or grammar rule per day is all I can aspire to. This was today's I will never forget it again. Thanks.