If you mean - Bonsoir - it means Good evening
"Good" in French is spelled "bon".
"Sois franc avec moi" translates as "be frank with me" in English.
Sois prudent
j'aimerais bien que tu sois là (avec moi)
You can say "c'est bon" in French to mean 'that's good.'
Good can be translated as "bon". The feminine form of this adjective is "bonne".bon (m.) or bonne (f.)
Be positive is "sois positif / sois positive" in French.
be prepared = sois préparé, sois prêt
Sois positif (masc.), sois positive (fem.)
Sois un homme Sois un gentleman
the translation in french is : 'sois heureux'
Be strong is 'sois fort' in French.
sois à l'heure
"sois toi-même"
sois heureuse
"Force" is the french word for strength, according to google.com
"sois forte" is French and in English it means "be strong". It would be said to someone to encourage them emotionally.