しばしば の訳語→ frequent frequently often oftentimes sometimes
たまたま の訳語→ accidentally coincidentally get happen just rare somehow unexpectedly
たまに の訳語→ few intermittently little occasionally
ときおり の訳語→ periodically
ときには の訳語→ either possibly sometime
よく の訳語→ again all almost always better carefully close closely common constantly deeply dreadfully enormously exactly exceedingly 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