I think that the main reason depends on the country they live in, because they will tend to use its language more, and the kids in future going to use the same language.
If these two languages are common in the country I suppose that the mother's language would be the dominate in the family because she spends more time with the babies than the father.
what's your opinion ?
Arabic:
0 sefer
1 wahed
2 ethnan
3 thalatha
4 arba'a
5 khamsa
6 setta
7 sab'a
8 thamanya
9 tes'a
10 ashara
For examples:
- In wich country is it?
- How is its name pronounced in your language?
- What is the approximate population there ?
- What are the famous places, foods, drinks etc. ?
- How many native languages are spoken there ?
- What is the most things that you like in living there ? ^_^
