Breakdown of O aksanı duyduğum gün çok güldüm.
o
that / he / she / it
çok
a lot of / many
gülmek
to laugh
gün
day
Questions & Answers about O aksanı duyduğum gün çok güldüm.
Why is it duyduğum (an object participle) when 'the day' isn't the object of the hearing?
In Turkish, when you want to express 'the day when' or 'the place where' something happens, you use the -dık (or -ecek) participle. Even though you heard the accent and not the day itself, time and place words act as the head noun for these relative clauses.
Why does aksan take the accusative case ending to become aksanı?
Because it is the specific direct object of the verb duymak (to hear) inside the relative clause. You are talking about hearing 'that specific accent' (o aksanı), so it requires the specific accusative ending -ı.
How can I tell which words are part of the relative clause and which are the main sentence?
A relative clause in Turkish always groups with the noun it modifies. Here, O aksanı duyduğum (that I heard that accent) acts as a big adjective describing gün (day). The main sentence is essentially just 'I laughed a lot that day', with all the extra details packed neatly before gün.
Why is there no locative ending on gün (like günde) to mean 'on the day'?