'Often' in the Bible

Then come to him the disciples of John, saying, Why do we and the Pharisees often fast, but thy disciples fast not?

Lord, have mercy on my son, for he is lunatic, and suffers sorely; for often he falls into the fire and often into the water.

Then Peter came to him and said, Lord, how often shall my brother sin against me and I forgive him? until seven times?

Jerusalem, Jerusalem, the city that kills the prophets and stones those that are sent unto her, how often would I have gathered thy children as a hen gathers her chickens under her wings, and ye would not!