是If could be worse还是It could be worse?

是If could be worse还是It could be worse?
是If could be worse还是It could be worse?

是If could be worse还是It could be worse?
实际都有可能出现吧,当然规则点的说法是It could be worse,可能会很糟
但If could be worse在口语里出现也不是不可能啊,比如:if could be worse,why not change another one?如果那样会很糟的话,何不换一个．．．

it could be worse
参见新概念英语书

It could be worse!
可能会更糟！