To be Affirmative | English Grammar A1 Level
https://open.books4languages.com/.../chapter/to-be-affirmativeTo be, in its affirmative form, confirms characteristics of the subject, for example: age, behaviour, colour, jobs, nationality, personality, place, price, qualities, size, time… Summary To be is one of the most commonly used auxiliary verbs. To be is often used with nouns, adjectives and prepositional phrases.