nationalité

 nationalities are spelled in lowercase. 

Note with the final -e is the feminine form the pronunciation changes as well as the spelling. Here are some more examples: 

Sometimes, the spelling might change but the pronunciation will stay the same: 

Note that, generally, the mark of the feminine is an -e. But when the adjective of nationality already ends in -e in its masculine form, it remains unchanged in its feminine form: 

In Plural it should be according with the number and gender. Plus an s however this S is not pronounce.

Tu es de quelle nationalité?

Je suis guatemalteque    I am from Guatemala

Je suis anglaise.            I am from England. 

Je suis américain.         I am from the US. 

Je suis mexicaine.         I am from Mexico. 

á - indicates the city where you are in the moment I'm speaking,

Je suis á Zona 10

Je suis á Berlin,

Je suis á Londres

Je suis á Moscou

Je suis á Guatemala

En  en Indicactes the country you are talking about

Anne travaille en Angleterre. 

Elle habite à Coventry. 

The French will usually use à in front of the name of a town and en in front of the name of a country. J’habite en France, à Courchevel, mais je travaille en Suisse. I live in France, in Courchevel, but I work in Switzerland. 

de indicates the city of origin where I'm from. or where you were born. d + vowel becomes d' like Vous êtes d'oú? De suis d'Athènes

Je suis de Chilmatenago

Je suis de Rome,

Je suis de Madrid

Je suis de Lisbonne,

chez is used with people with the meaning at someones place

Je suis chez

              | moi

              | pierre

              | des amis