如在電話中你估對方是王先生而你說 is there Mr. Wong? (你是否王先生?) 是完合正確的, 但必需有question mark(?) 即在等待答覆.
There is Mr Wong. 王先生就在那裡. (when you are expecting to meet Mr. Wong.)
Mr. Wong is there. 王先生正在那裡. (when asked where is Mr. Wong?)
Is there Mr Wong. is wrong
Is there Mr Wong? is right, but Is Mr Wong there? is better (i dont know if u mean
Is that Mr Wong)
There is Mr Wong. right
Mr Wong is there . right