1.Has he buy a ticket? yes, he is
2.Buy he a ticket? yes, he is
3. has he to buy a ticket? yes, he has
4. will he buy a ticket? yes, he will
5. is a ticket there? yes, is there
6. is it a ticket? yes, it is
7. take it him 5 minutes to buy a ticket? yes, it is
8. buy he tickets there? yes, he is