'Peradventure' in the Bible

Peradventure there are fifty righteous within the city: wilt thou consume and not spare the place for the fifty righteous that are therein?

peradventure there shall lack five of the fifty righteous: wilt thou destroy all the city for lack of five? And he said, I will not destroy it, if I find there forty and five.

And he spake unto him yet again, and said, Peradventure there shall be forty found there. And he said, I will not do it for the forty's sake.

And he said, Oh let not the Lord be angry, and I will speak: peradventure there shall thirty be found there. And he said, I will not do it, if I find thirty there.

And he said, Behold now, I have taken upon me to speak unto the Lord: peradventure there shall be twenty found there. And he said, I will not destroy it for the twenty's sake.

And he said, Oh let not the Lord be angry, and I will speak yet but this once: peradventure ten shall be found there. And he said, I will not destroy it for the ten's sake.

And the servant said unto him, Peradventure the woman will not be willing to follow me unto this land. Must I needs bring thy son again unto the land from whence thou camest?

And I said unto my master, Peradventure the woman will not follow me.

My father peradventure will feel me, and I shall seem to him as a deceiver. And I shall bring a curse upon me, and not a blessing.

and ye shall say, Moreover, behold, thy servant Jacob is behind us. For he said, I will appease him with the present that goeth before me, and afterward I will see his face; peradventure he will accept me.

But Benjamin, Joseph's brother, Jacob sent not with his brethren; for he said, Lest Peradventure harm befall him.

and take double money in your hand; and the money that was returned in the mouth of your sacks carry again in your hand; peradventure it was an oversight: