In English, you can say 'I have a Japanese friend'.
お友達 /o to mo da chi/.
'Ii tomodachi.'
Yes, if you are using it as a noun, i.e. to refer to a native of Japan, or the langauge spoken there, it is a proper noun. Otherwise it is an adjective.
Yes, the compound noun 'best friend' is a common noun, a word for any best friend of anyone. A proper noun for best friend is the name of the friend, Sofia. The word "friend" in the sentence "Sofia is your best friend" is the only common noun. "Sofia" is a proper noun, "is" is a present-tense verb, "your" is a possessive adjective, and "best" is a superlative adjective.
The proper adjective for Siam is Siamese.
The proper adjective for George is Georgian.
The spelling 'yoky' is a Japanese female name (Yoky or Yoko), a proper noun. The spelling 'yucky' is an adjective, meaning gross, distasteful, or disgusting.
I'd say the proper adjective is a Japanese garden
A proper adjective is an adjective formed from a proper noun. "Arabian", "Grecian", "Japanese", "African".
Yes, if you are using it as a noun, i.e. to refer to a native of Japan, or the langauge spoken there, it is a proper noun. Otherwise it is an adjective.
Yes, the compound noun 'best friend' is a common noun, a word for any best friend of anyone. A proper noun for best friend is the name of the friend, Sofia. The word "friend" in the sentence "Sofia is your best friend" is the only common noun. "Sofia" is a proper noun, "is" is a present-tense verb, "your" is a possessive adjective, and "best" is a superlative adjective.
No. It is a proper adjective for people or things from Japan. It is also used as a noun, but almost always as a plural noun, for Japanese people. (Group noun "the Japanese" and not usually "a Japanese" as with the term "a German.")
The proper adjective for Portuguese is "Portuguese."
The proper adjective for southwest is "southwestern."
The proper adjective for Haiti is Haitian.
Vietnamese is the proper adjective for Vietnam.
The proper adjective for Siam is Siamese.
The proper adjective for George is Georgian.
The proper adjective for Georgia is Georgian.