Peaceblinkfriend wrote:Hi all agian I would like to know the differences between these pairs of sentences. Which is correct and why ?1. a) What are the differences between these two ? OK. This suggests that there is (or may be) more than one difference. b) What is the difference between these two ? OK. This indicates that there is only or exactly one difference.2. a) How many people are there? OK b) How many people is there? Wrong. You need 'are' because people is plural.3. a) I don't know if she know who Jim is ? Wrong. You need simple present tense and third person singular with 'she'. b) I don't know if she knows who Jim is. OK (but without the question mark because it is not a question).
