He lent me the money on condition that I pay it back next month.为什么不用paid?

问题描述:

He lent me the money on condition that I pay it back next month.为什么不用paid?

说这话的时候,“他借我钱是在我下个月会还的情况下才借的.”当时还钱是将来发生的动作,应用将来时,而主句事态是过去式,所以将来时后退一个时态,所以用pay