You can see explanation of modal verbs in the screenshot. I`ve used Jam board.
https://jamboard.google.com/d/1_0V8-qmexRH4mLn2ODKL_FoiGmZP4uobb8-XI4vUUzU/viewer?f=0
You can practice using the links below. The grammar topic is often used in ZNO.
https://wordwall.net/ru/resource/6695122/modal-verbs
https://www.baamboozle.com/game/28912
https://agendaweb.org/verbs/modals-exercises.html
https://test-english.com/grammar-points/b2/modal-verbs-permission-obligation-prohibition-necessity/
https://www.english-grammar.at/online_exercises/modal-verbs/modal-verbs-index.htm
https://www.iznotest.info/modal-verbs-modalni-diyeslova/
