'Cannot' in the Bible

But if his hand cannot attain to two turtle-doves, or two young pigeons, then he that sinned shall bring for his offering the tenth part of an ephah of fine flour for a sin-offering: he shall put no oil on it, neither shall he put frankincense thereon; for it is a sin-offering.

And if her hand cannot find what is sufficient for a sheep, she shall bring two turtle-doves or two young pigeons; one for a burnt-offering, and the other for a sin-offering; and the priest shall make atonement for her; and she shall be clean.

This is the law for him in whom is the sore of leprosy, whose hand cannot get what is regularly prescribed in his cleansing.

but if he do not redeem the field, or if he sell the field to another man, it cannot be redeemed any more;