In colloquial Danish, can you say these sentences? If not, please correct!
Hello! I have a series of sentences and I'd like some feedback from native speakers about whether or not they sound natural.
Some of them I tried to make wrong on purpose because I want to see how certain features of the language work.
Thanks so much for the help!!
--- Do I need "som"/"der" for any of these?
1) Jeg så bilen du købte i går.
2) Manden jeg elsker har en hus i Danmark.
3) Kvinden her står er min ven.
---- Did I use "at" correctly? Does #5 need "at"??
4) Jeg tror at Dansk er smuk.
5) Jeg tror hun er venlig.
Tak!! :-)