Summary :
国籍 总称（谓语用复数） 单数 复数
1.中国人 the Chinese a Chinese two Chinese
2.瑞士人 the Swiss a Swiss two Swiss
3.澳大利亚人 the Australians an Australian two Australians
4.俄国人 the Russians a Russian two Russians
5.意大利人 the Italians an Italian two Italians
6.希腊人 the Greek a Greek two Greeks
7.法国人 the French a Frenchman two Frenchmen
8.日本人 the Japanese a Japanese two Japanese
9.美国人 the Americans an American two Americans
10.印度人 the Indians an Indian two Indians
11.加拿大人 the Canadians a Canadian two Canadians
12.德国人 the Germans a Germans two Germans

13.英国人 the English an Englishman two Englishmen