Welsh is the most commonly spoken Celtic language, about 90% of the speakers live in Wales and England. Irish is the second commonly spoken.
The most commonly spoken language in the UK is English.
The most commonly spoken language in Paris is French.
Wales would be the most likely country to hear a Celtic language being spoken.
Spanish is the most commonly spoken language in Central America.
Russian is the most commonly spoken Language in Europe.
Portugeze is the most commonly spoken language in Brazil.
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Spanish is the second most common "spoken" language. The second most common language is sign language.
English.
English
English.
Mandarin