'Perhaps' in the Bible

Do not defraud one another, except perhaps by agreement, for a time, in order that you may devote yourselves to prayer, and [then] you should be {together} again, lest Satan tempt you because of your lack of self control.

And what you sow [is] not the body which it will become, but you sow the bare seed, whether perhaps of wheat or of some of the rest.

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