Questions & Answers about Dün arkadaşlarla çok eğlendik.
Dün means yesterday.
In Turkish, time words often come near the beginning of the sentence, so Dün arkadaşlarla çok eğlendik is a very natural order:
Yesterday, we had a lot of fun with friends.
That said, Turkish word order is flexible. You could move dün for emphasis, but sentence-initial position is the most neutral here.
In Turkish, with is often expressed by the suffix -la / -le attached directly to a noun.
So:
- arkadaş = friend
- arkadaşlar = friends
- arkadaşlarla = with friends
This is basically:
- arkadaşlar
- -la → arkadaşlarla
There is also a separate form ile, which also means with. So arkadaşlarla and arkadaşlar ile mean the same thing, but the attached suffix form is very common in everyday Turkish.