I don't know what can I do 还是 I don't konw what I can do

I don't konw what I can do

肯定是 I don't konw what I can do
这是一个宾语从句,从句,也就是what 后面的要用陈述句语序

I don't konw what I can do

I don't know what I can do 对~
宾语从句 要用陈述语序~

第2个对
但know拼错了

I don't konw what I can do .宾语从句要用陈述句语序