*) There is a ...
+) There is a/an + N in/on/...+N địa điểm
Eg: There is a board in the classroom
-) There isn't a/an + N in/on/...+N địa điểm
Eg: There isn't a board in the classroom.
?) Is there a/an + N in/on/...+N địa điểm
Eg: Is there a board in the classroom ?
*) There are...
+) There are +many + N(s/es)+ in/on/...+N địa điểm
Eg: There are many boards in the classroom
-) There aren't +any + N(s/es)+ in/on/...+N địa điểm
Eg: There aren't any boards in the classroom
?) Are there +any + N(s/es)+ in/on/...+N địa điểm?
Eg: Are there any boards in the classroom?
