Traditionally, enquire simply meant “ask,” while inquire was used for formal investigations. In the UK, the two words are used interchangeably, although inquire is still the more commonly used word for formal or official investigations. In the United States, inquire is the strongly preferred spelling in all uses.

Do you make Enquiries or inquiries?

Either spelling can be used, but many people prefer enquire and enquiry for the general sense of “ask”, and inquire and inquiry for a formal investigation: I enquired his name. The first enquiry in my inbox today was about lost property. We are going to inquire into the incident.

How do you use inquiry and enquiry?

Noun Form: Inquiry Vs.

Like the verb forms, both noun forms are formal and refer to "asking for information" or "an investigation." American and Canadian English use inquiry for both meanings, whereas British English prefers enquiry for "asking for information" and inquiry for "an investigation."