Learn to use No sooner correctly
Q. No sooner (1) / did I reach the office (2) / then (3) / it started raining. (4) / No Error (5)- Published on 06 Jan 17
'No sooner' is always followed by 'than', and not 'then'. Note the difference between the spellings of the two words.
The correct sentence should be: No sooner did I reach the office than it started raining.