i Register
In some senses, rio is marked as US. Watch for register when choosing this word.
ADJ.
live, living, many
Many people living in Rio de Janeiro struggle with the city's traffic congestion.
VERB + RIO
come, crossed, doesn't, hasn't, heard, lived, name, pick
We crossed the Rio Grande during our road trip through Texas last summer.
RIO + NOUN
grande, janeiro, norte, river, years
The Rio Grande forms a natural border between Texas and Mexico.
PREP.
in, in, up
We took a boat trip up the rio to see the wildlife in the rainforest.
ADV.
ever
I've never seen a river flow that fast ever before in my entire life.