4th ESO. MODALS OF DEDUCTION AND POSSIBILITY

GRAMMAR EXPLANATION 

http://www.perfect-english-grammar.com/modal-verbs-of-probability.html

HAVE A LOOK AT THIS DETAILED EXPLANATION!!!

Present and Past Modals of Deduction with Sherlock Holmes from David Mainwood

SOME EXERCISES

https://elt.oup.com/student/result/engint/a_grammar/unit07/7c_1?cc=global&selLanguage=en

Write your own deductions.

Deduction

http://www.authorstream.com/Presentation/EUGENIOMONDEJAR-940730-deduction/

You may like those exercises!!