Modal Verbs for Deduction

Complete coverage of all English verb tenses with grammar explanations and exercises: present simple, present progressive, future forms, present perfect, past simple, past progressive, past perfect, plus mixed tense reviews.

David Fux

15-question exercise on modal verbs for deduction and probability with a reference table of three use types: future possibilities, certainty, and possible explanations.

Bob Wilson

12-question exercise on modal verbs of obligation, recommendation, and prohibition covering have to, must, should, ought to, and dont have to with answer key.

Bob Wilson

Four groups of irregular verb exercises organized by conjugation pattern with contextual sentences for gap-filling. Includes answer key.

Bob Wilson