Is it normal for a person to forget his / her second language learned during his / her early adulthood?
For example, if you have learned French, German, Spanish, Japanese, or English (just list a few) since high school and used it as a primary language during your 20s and early 30s, do you forget that language once you go back to your native country (where your second language is not spoken)?
I am curious to know the language and speech retention of a person's brain.
Do people retain a language after using it as a primary one for more than 10 years?
For example, if you have learned French, German, Spanish, Japanese, or English (just list a few) since high school and used it as a primary language during your 20s and early 30s, do you forget that language once you go back to your native country (where your second language is not spoken)?
I am curious to know the language and speech retention of a person's brain.
Do people retain a language after using it as a primary one for more than 10 years?