A good behavior is "un bon comportement" (masc.) in French.
To say "it is good" in Cajun French, you can say "c'est bon."
Bonn a petite is how you say good appetite in french.
To say "good night dad" in French, say Bonne nuit, papa.
You can say "Mon français est bon" in French to mean "My French is good."
You can say "C'était bon" in French to mean "It was good."
If you would say "Are you good in science?" that would refer to your behavior. However if you would say " Are you good at science?" that can refer to your behavior or your knowledge.
To say 'good evening' in French you say 'bonsoir'. This is pronounced as 'bon swor'.
Good in french is Bien. Hello in french is Bonjour.
'good Passover' in french is 'bonne Pâque'
good peas are 'bons pois' in French.
"Good night to a man in french."
You could say "Bon chance" which is good luck.