I am do not know what to say(同一句)

I am do not know what to say(同一句) I do not know what I am going to say.改为同义句I do not what —— — Now,i do not know what i should say .In a word,i am sorry to I do not know what you mean to say is, i do not know what to say (say) at the party 为什么添to say I really do not know what you want to say,You want to say go sorry.I just do not know how to say.I feel I am very strange I,I,I,know,am,going,be,what,to,grow,when,up,not,do.连词组句 i am worry about myself,i do not know how to do and what to I want to see you again ,just I do not know what to say .Bef I am realy sad,and I do not know what I to do I don not know what i should say or do它的简单句是什么