Mr. K’s Classes Before buying a course, please register and/or log in.(Even for the free ones.) Login Mr. K's Classes Free A Long Walk to Water Continue Study Free QSkills Listening Continue Study Free Eikaiwa (2nd Year) Continue Study Free College Prep (Temple University – Japan AEP) Continue Study Free Sougou Eigo (4th Year) Continue Study Basic Verb Tenses Learn the basics of English verb tense. Enroll Now Adjective Clauses Everything you need to know about adjective clauses and more. Enroll Now 50.00 Subject-Verb Agreement Is or are? Was or were? Do or Does? How do you know? Enroll Now 500 Mr. K’s Grammar Boot Camp Stop guessing! Build your grammar core! Enroll Now Free Foundation Grammar Start from the very beginning. Enroll Now! It's Free!