There are few auxiliary verbs which may be grouped into:(a) Primary auxiliaries–BE, HAVE, DO(b) Modal auxiliaries–can, may, shall, will, could, might, should, would, must, ought to, used to, need, dare.Auxiliaries have certain properties which distinguish them from lexical verbs. Questions, negations and emphaticstatements can be directly formed with them without the use of other verbs.The presence of ‘is’ in the verbal group helps form the required constructions, when no auxiliary is present ‘do’ isrequired to form these constructions, e.g.Does he speak Spanish?A ‘question tag’ can be directly formed with an auxiliary, e.g. He has come, hasn’t he?Lexical verbs need the support of ‘do’, e.g. He wrote this poem, didn’t he?The lexical verbs need the auxiliary verbs to form constructions not only, but also to form complex tense forms.Only the simple tenses can be directly indicated by the lexical verb, e.g. Sita lives in Kolkata. To indicate theprogressive tenses and the perfect tenses, the auxiliaries ‘be’ and ‘have’ are needed, e.g.I am writing a