Formal or informalAges 15–20Ask or enquire
Everyday: speech, class, messages.
Can I ask a question about the homework?
Formal: letters, offices, customer service.
I am writing to enquire about admission for next year.
Remember: British and Indian English usually write enquire; American English prefers inquire. In an application, 'I wish to enquire' sounds polished.
Short lessonFormal or informalWe speak differently to friends, teachers and officials. This change in style is called register.