it is gone!语法正确吗?

it is gone!语法正确吗? it is gone!语法正确吗? It is gone. It is missing.请解释一下这两句话的语法? it is gone the rain is gone.单独的句子语法有错吗 She is gone中is和gone的语法是? it is nice to have you here,it is nice of have you here 这两句语法正确吗?为什么 can you do it语法正确吗 I find it is too difficult to remember everything.语法正确吗? It is gone for good. Which is your home?语法正确吗 she is girl语法正确吗? you is who?语法正确吗? Hope is never slept 这句话语法有错吗?还有love is never gone 这句话语法结构正确吗?It is society that the competition is more and more fierce. it is a secret 符合语法吗 The place he has gone is not known yet.这句话语法上有错吗? It is widely believed that by many people for some time that ...语法正确吗?请分析