"He likes beer."
Translation:Ele gosta de cerveja.
EU gosto = i like / he, she, it, you = like(s) (ele, ela, você gosta). Gosto = 1st singular person / gosta = 3rd singular person (and "você" - you). To know the gender of the words.... we just have to know them. A simple rule: most words ending in -a are feminine, and in -o are masculine. (Ex: A cervejA)