Person 1: Look at the video I took in this park in Paris.
Person 2 watches the video which shows a beautiful sky along with beautiful landscapes and sounds and birds.
Person 2: Wow. I didn’t know Paris was this beautiful.
This kind of construction is used all the time in English and even though I’m an English native I’m having a hard time describing the function of the word this lol 😂. However, what I can say for definite is that the sentence “Wow. I didn’t know Paris was this beautiful.” is equivalent to “Wow. I didn’t know that Paris contained the amount of beauty that’s shown in the video.”
So firstly, I’m guessing this is an adjective or adverb. If it is, what kind of adjective or adverb is it?
Secondly AND WHAT IS MOST IMPORTANT is what is the French equivalent?
Thank you for your help!!! 😊