How old are you? - To Be + Age

Talking about your age in English. To answer the question HOW OLD ARE YOU? We use TO BE Number Years Old Is “Years Old“ necessary? What about with babies... How do we say the age of a baby? Do I write the age as a number or a word? How can I ask the age of another person or a thing? In this video we also look at, and answer all of these. Also we look at the common mistake of using HAVE instead of TO BE.