Adjective and noun forms of nationality Please help me get the adjective form and noun form of different countries Let's talk about their usage,

Adjective and noun forms of nationality Please help me get the adjective form and noun form of different countries Let's talk about their usage,

Adjective form:
Countries ending with - n are usually followed by - ese, [such as China and Japan];
Most western countries are followed by - n [such as Russia and the United States];
Very few countries have special forms [such as France French]
As for the population, the singular number is basically equal to the above-mentioned reform;
For the plural, there is a saying that "China and Japan remain unchanged, English and French change, others are followed by - s"
This form should help you solve the problem
┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳┳
┣China╋╋╋╋╋╋╋╋Chinese╋╋╋╋╋╋╋╋Chinese ╋╋╋╋╋╋╋┫
┣Japan╋╋╋╋╋╋╋╋Japanese╋╋╋╋╋╋╋ Japanese╋╋╋╋╋╋╋┫
┣╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋┫
┣England╋╋╋╋╋╋╋Englishman╋╋╋╋╋╋╋Englishmen ╋╋╋╋╋┫
┣France╋╋╋╋╋╋╋ Frenchman╋╋╋╋╋╋╋╋Frenchmen ╋╋╋╋╋┫
┣╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋╋┫
American, American, American, American
┣Russia╋╋╋╋╋╋╋ Russian╋╋╋╋╋╋╋╋╋ Russians ╋╋╋╋╋┫
┗… ┻┻┻┻┻┻┻┻┻… ┻┻┻┻┻┻┻┻┻┻┻… ┻┻┻┻┻┻┻┻┻┻┛
————————See? I'm tired@^@————————

Noun + adjective (four character word)
It's not English!

It is full of vitality, elegant appearance, beautiful posture and beautiful environment

The noun form and adjective form of persuade
Such as the title```

Noun form: Persuasion
Adjective form: persuasive