90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.
She is used as the subject of a verb. Some people prefer to use she after the verb 'to be' but this sounds very formal and old-fashioned: Was it she who spoke to the press? In American English, however, 'This is she' is the usual way that a woman replies on the telephone when someone asks to speak to her: 'May I speak with Mrs Elpin?' 'This is she.'