Don’t worry – I’m going to teach you a simple formula that works for asking questions in almost ALL the verb tenses!
This formula is called QUASM:
QU estion word
A uxiliary verb
S ubject
M ain verb
In today's lesson, you'll see how QUASM works for forming questions in various verb tenses.
Click here for the lesson text - http://www.espressoenglish.net/an-easy-way-to-form-almost-any-question-in-english/