it is required by law that a husband has to pay the debts of his wife until

it is required by law that a husband has to pay the debts of his wife until

a husband是单数……上课了

看不懂，没办法回答

法律规定的条款不用虚拟语气，是真实的要求 it is required by law that a husband has to pay the debts of his wife until formal notice（that同位语） is given （that） he no longer has to （pay her）。