How Do At No Time and Under No Circumstances Trigger Inversion? (C2 Exercises)

When phrases like at no time, under no circumstances, and on no account are fronted, the following clause must invert, as in under no circumstances should you open this door. If there is an auxiliary or modal, it moves before the subject; if not, do, does, or did is inserted.

Grammar Rule

When these phrases are fronted, the following clause must invert, as in a yes/no question. If there is an auxiliary or modal, it moves before the subject; if not, do/does/did is inserted. Under no circumstances and on no account are almost always followed by a modal, while at no time more commonly pairs with did or was.

At No Time, Under No Circumstances, On No Account + Inversion: Rules and Examples

Remember: Front these phrases only for emphasis, and always invert the subject and auxiliary — never leave normal word order after them.

Practice Test

Instructions

Answer each question in the test below using at no time, under no circumstances, and on no account correctly with inversion. You will get a new random set of questions every time you retake the test, plus a downloadable results summary with your name and score at the end.