The suffixes to form the natianalities:
-an:
Australia - Australian
Korea - Korean
Ukarine - Ukrainian
Malaysia - Malaysian
Fiji - Fijian
-ese:
Japan - Japanese
China - Chinese
Vietnam - Vietnamese
Portugal - Portugese
Nepal - Nepalese
-ish:
Britain - British
England - English
Poland - Polish
Sweden -Swedish
Finland - Finnish
Spain - Spanish
Turkey - Turkish
-i
Bangladesh - Bangladeshi
Kuwait - Kuwaiti
Israel - Israeli
Irak - Iraki
Thailand - Thai
-irregular way
France - French
New Zeland - New Zelander
Philippines - Filipino
Holland - Dutch
Switzerland - Swiss
Greece - Greek
Iceland - Icelandic