He is allowed to join. You use the infinitive form in that case. :)
Technically, but "I hope that you will be able to join us as well" would be better.
It's not clear - I think you mean, "Either the students or the teachers can join." Or perhaps you mean, "Both students and teachers can join."
The correct spelling of the word is "join" (to become part of a group, or to connect together).
Yes, but "joined" should be "join" in order for the question to be grammatically correct.
Joining is the present participle of join.
Yes, however you could also say "if you WOULD join us".
i will be joining
Joining WikiAnswers? Well, to join WikiAnswers, it is free!
yes i am joining
joining cricket teams
As i concernerd about joining so I can join the company as decided by you.
Newfoundlanders are allowed to join the Canadian Forces.