The only correct plural for French is French. "Frenches", as you say, or 'Frenchies' is a derogatory slang term.
No, the correct way to say it is chers amis.
Yes, "un bonbon" is correct in French. It translates to "a candy" in English.
"Bon semaine" is not a correct phrase in French. The correct way to say "Have a good week" in French is "Bonne semaine."
"Say dommage" is not a correct phrase in French. "Dommage" on its own means "too bad" or "a pity" in English.
Une opale is the correct way to say "an opal" in French.
Est-il correct de dire... ?
That is the correct spelling of "rendezvous" (meaning a meeting, from French).
Station d'accueil is the correct way to say docking station in french.
you can say 'une liberté' in French. This is correct.
carbohydrate in french is hydrate de carbone ---- This is the correct spelling.
The only correct plural for French is French. "Frenches", as you say, or 'Frenchies' is a derogatory slang term.
No, the correct way to say it is chers amis.
Il est fini is more correct in the written French, but spoken French one can say C'est fini (not two n's)
the correct way of saying inacostal is "abou"
"Bon semaine" is not a correct phrase in French. The correct way to say "Have a good week" in French is "Bonne semaine."
Yes, "un bonbon" is correct in French. It translates to "a candy" in English.