Jerin ran fast lest she _____________ the class.

Complete Sentence: Jerin ran fast lest she should miss the class. 

Lest এর ব্যবহার:
→ Lest একটি conjunction এবং এর অর্থ হল 'পাছে/যাতে না'। 
→ মূলত এটি negative অর্থে বাক্যে ব্যবহৃত হয়ে থাকে।

Structure: Independent clause + lest যুক্ত Dependent clause.
অর্থাৎ, subject + verb + other words + lest + subject + (should/might) + base form of verb + other words.

Example:
1. Jamil studied diligently lest he should fail the exam.
2. Sarah packed her bags early lest she should miss the train to the conference.

Source: Advanced Learner’s Grammar & Composition by Chowdhury & Hossain.