ときおり (translations)→ occasional occasionally sometimes
ときどき (translations)→ often part-time periodic several
よく (translations)→ again all almost always better carefully close closely common constantly deeply dreadfully enormously exactly exceedingly frequent frequently fully further good great hard intimately like lot many mostly much once perfectly prolonged properly quite really respectable seriously soundly strongly usually very vigorous well
しょっちゅう (translations)→ continually everlasting every so often perpetual regularly relentlessly repeatedly use