Robert Krohn's remains a foundational text for ESL and EFL learners, originally developed at the University of Michigan’s English Language Institute . While the original work dates back to 1971 , it continues to be used in modern intensive courses due to its systematic approach to pattern practice. 📘 Mastering English Sentence Structure: The Krohn Method
Workbook tasks (underlining, multiple-choice) increase in cognitive difficulty lesson by lesson. englishsentencestructurerobertkrohnpdf 2021
: Lessons include written exercises designed for regular review and student self-assessment. Robert Krohn's remains a foundational text for ESL