Verb "to be": Practise and Play!

When do we use AM, IS, ARE?

How do you write the negative of these forms?

How do you make questions with these forms?

Play and Practise with these exercises and games!

- http://www.eslgamesplus.com/verb-to-be-auxiliary-verb-am-is-are-esl-grammar-activity/

- http://www.bradleys-english-school.com/online/flashmultiplechoice/mc_amisare.html

- http://www.esolhelp.com/verb-to-be/verb-to-be.html

- https://learnenglishkids.britishcouncil.org/en/grammar-practice/present-simple-verb-be