'Perhaps' in the Bible

Do not deprive each other [of marital rights], except perhaps by mutual consent for a time, so that you may devote yourselves [unhindered] to prayer, but come together again so that Satan will not tempt you [to sin] because of your lack of self-control.

There are, perhaps, a great many kinds of languages in the world, and no kind is without meaning.

And as for what you sow—you are not sowing the future body, but only a seed, perhaps of wheat or another grain.

and perhaps I will remain with you or even spend the winter, so that you may send me on my way wherever I go.