When we talk about ourselves and others, we use three little words in abundance and they are "am", "is", and "are". These words come under "to be" verbs in English grammar and the present tense form of "to be" are the three words "is", "are", and "am". We use these present simple forms of "to be" verbs when we want to talk about people, places, and things such as "I am 3 years old", "She is a girl", "The house is huge", and "I am home", etc.
For example,
For example,
For example,