Install apertium-pt-gl by entering the following commands in the terminal:
sudo apt update sudo apt install apertium-pt-gl
Description:
Apertium translation data for the Portuguese-Galician pair
Data package providing Apertium language resources for translating between the Portuguese and Galician languages.
Homepage: http://apertium.org/
Version: 0.9.2~r57551-2
Section: universe/misc