"mets ta ceinture / mettez votre ceinture"
Tell them to stop being a jackass and put on their seatbelt.
It is for your safety. More people without a seatbelt die in car accidents than with seatbelt. So I require to use the seatbelt. See here for more information about seatbelt usage: How_much_does_it_cost_to_replace_a_window
Buckle your seatbelt!
why it is ok to not wear a seatbelt
You can say "my brother" by using the possessive pronoun "my" and the noun "brother."
By putting your seatbelt on! Not wearing a seatbelt is one of the dumbest things you can do. Seat belts save lives.
The word seatbelt has two syllables. The syllables in the word are seat-belt.
because it's a belt for a seat.
you are wearing the seatbelt.
The seatbelt
to say is the verb 'dire' in French.