I'm afraid they would not allow him to smoke here.为什么用would而不用will呢?用will可以吗?

I'm afraid they would not allow him to smoke here.为什么用would而不用will呢?用will可以吗?
I'm afraid they would not allow him to smoke here.
为什么用would而不用will呢?用will可以吗?

I'm afraid they would not allow him to smoke here.为什么用would而不用will呢?用will可以吗?
此时表虚拟语气　will在语法上没错　不过would在I　am　afraid　后用的更多