Here's the structure:
No sooner + had + past participle + than + clause
Example:
* No sooner had I arrived at the party than the music started blasting.
Explanation:
* No sooner: This phrase indicates that something happened immediately after another event.
* had + past participle: This is the past perfect tense, used to describe an action that was completed before another action in the past.
* than: This word introduces the second event that happened immediately after the first.
* clause: This is a group of words that includes a subject and a verb, and it describes the second event.
Here are some more examples:
* No sooner had I finished my homework than my friends called to go out.
* No sooner had the sun risen than the birds started singing.
* No sooner had the speaker finished his speech than the audience erupted in applause.