You are welcome to answer questions posted in the Ask a Teacher forum as long as your suggestions, help, and advice reflect a good understanding of the English language. If you are not a teacher, you will need to state that clearly at the top of your post. Please note, all posts are moderated by our in-house language experts, so make sure your suggestions, help, and advice house the kind of information an international language teacher would offer. If not, and your posts do not contribute to the topic in a positive way, they will be subject to deletion.
Enquiry and inquiry have long existed together as alternative spellings of the same word. In America inquiry is dislodging enquiry for all purposes. In England a useful distinction is developing: enquiry is used for asking a question and inquiry for making an investigation. Thus you might enquire what time the inquiry begins.
Enquiry & Inquiry 
Re: Enquiry & Inquiry 
Linear Mode
