The official language of Vietnam is
Vietnamese. English is the preferred second language.
About half the population speaks English to some extent. Vietnamese:
Austroasiatic language.
Classified with Hebrew, Russian and Urdu as "hard to learn" which depends a lot on which language you learned growing up.
Natively spoken by about 85 million people, several times more than all the other Austroasiatic languages put together.
Highly analytic and tonal.
Modifiers follow the words they modify.
Influenced by Middle Chinese with many loanwords from French.
Vietnamese sounds monosyllabic ti many, but is not.
Alphabet based on the Latin alphabet.