Johann

I'm trying to say "he is in the front of the bus". The thing is that I'm a syntactitian doing research, so I'd like to know if these sentences are acceptable grammatically, regardless of how commonly it's used. Thanks!

Hello there! I have a question about Mandarin Chinese grammar. Which of the following sentences are acceptable: 

1) 他是在公共汽车里的前面 
2) 他是在公共汽车的前面里 
3) 他是在公共汽车里的前面里 

Also, would you be able to say something like "他是在前面的公共汽车(里)? 

Thanks in advance!