It is not impossible to use adjectives, but some people may find it awkward. If you know that the name has a bad meaning, is not commonly used, or is an adjective, sometimes it will be used to make fun of you. , so it is recommended not to use it.
Or you want to use homophones:
Channy or Channing (Qian Ni or Qian Ning)
Channy is Hannah ( Hannah) is a nickname derived from the name (can also be regarded as a formal name)
It means a kind and noble person
Channing is a surname, but some people also use it as a first name.
It means wolf cub
No matter which one it is, it happens to rhyme with your last name. If you are just introducing yourself in an informal setting, you do not have to give your last name. As long as Just say I am Channy or My name is Channing (Ming), etc. And if someone asks, just answer My family name is Cheng. This way, the whole story won't feel too awkward.
If you don't have a favorite English name, Chinese names are now very common abroad. You can also use your Chinese name directly. You can introduce yourself in many ways, for example: My name is Cheng, Ming; sounds like charming isn' t it? So it should be easy to remember! Cheng is actually my last name by the way. (This is a more humorous introduction)
My name is Ming and my family (last)name is Cheng. (This is more common and formal)
My name is Cheng, Ming. Ming is the first name or Cheng is the last name. Explain in the second sentence so that others can understand. ! You know which one is your first name and which one is your last name, you don’t need to explain more.