Lest - Learn correct usage with rules, examples and exercises
Q. Study hard (1) / lest (2) / you should not (3) / fail. (4) / No Error (5)- Published on 06 Jan 17
'Lest...should' is used to extend a warning and also suggest the consequences of not paying attention to that warning.
|Warning +||Lest+||Person +||Should +||Consequence|
The use of this conjunction in any sentence conveys a negative sense. As such, 'no' or 'not' should not be used in that sentence.
'Lest...should' already conveys a negative sense.
The correct sentence should be: Study hard lest
fail.** Lest is always followed by should, with a ‘not’ anywhere.
'should' here can not be replaced by 'would' or 'may'.For e.g.
Go through the notes again and again lest you would/may fail, is incorrect.