I'm always confused how to write a "something of something else" in English, especially when plural is involved. For example, what would be the correct way to write the following sentences in English:
There are three phones, each phone is of a different type:
- Three types of phones?
- Three phone types?
- Three types of phone?
Similarly, there are several doctors, and each doctor has a car:
- The doctors' cars?
- The cars of the doctors?