i have to say everyone in this world experience ...

i have to say everyone in this world experience such feelings in his life 这是一个宾语从句,I have to say是主句,say 后面省略了连接词that ,everyone in this world experience such feelings in his life是从句部分.it is really a good thing to show who we are in front of others这貌似是个定语从句,to show who we are in front of others是解释good thing的