Let's revise the 'be' verb.
The 'be' verb consists of 'is', 'are'(Present Tense), 'was', 'were' (Past Tense)and 'am'
We use is or was ,when there is only one object/person.
We use are or were,when there are more objects/people
Example: Ali is a sportsman.
The boys were present in class yesterday.
Watch this video
Simple Present Tense
2 Bee or Not to bee
Simple Past Tense