In/to + city/country

Question 1

how do we say ‘in’ with a town/city in french?

Answer 1

à
eg j’habite à lisburn
Il va à edimbourg

Question 2

how do we say ‘in/to’ with a country in French?

Answer 2

the word changes according to whether the country is masc/fem/plural
eg en + feminine country (generally end in -e)
au + masculine country (generally doesn’t end in -e)
aux + plural country (ends in ‘s’)
eg nous allons en espagne
Tu vas au Portugal
Ils habitant aux etats-unis